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Finding the Fourth Proportional to 646,867.60, 970,301.40 and 363,432.40

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Solution

The fourth proportional to 646,867.60, 970,301.40 and 363,432.40 is: 545,148.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,867.60 : 970,301.40 = 363,432.40 : x
  2. Step 2: Convert to fraction form
    646,867.60/970,301.40 = 363,432.40/x
  3. Step 3: Cross multiply
    646,867.60x = 970,301.40 × 363,432.40
  4. Step 4: Simplify right side
    646,867.60x = 352,638,966,525.36
  5. Step 5: Solve for x
    x = 352,638,966,525.36/646,867.60
  6. Step 6: Final answer
    x = 545,148.60

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.