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Finding the Fourth Proportional to 646,741.60, 970,112.40 and 497,269.60

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Solution

The fourth proportional to 646,741.60, 970,112.40 and 497,269.60 is: 745,904.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,741.60 : 970,112.40 = 497,269.60 : x
  2. Step 2: Convert to fraction form
    646,741.60/970,112.40 = 497,269.60/x
  3. Step 3: Cross multiply
    646,741.60x = 970,112.40 × 497,269.60
  4. Step 4: Simplify right side
    646,741.60x = 482,407,405,103.04
  5. Step 5: Solve for x
    x = 482,407,405,103.04/646,741.60
  6. Step 6: Final answer
    x = 745,904.40

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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.