Home / 646,848.60-970,272.90-488,218.20

Finding the Fourth Proportional to 646,848.60, 970,272.90 and 488,218.20

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Solution

The fourth proportional to 646,848.60, 970,272.90 and 488,218.20 is: 732,327.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,848.60 : 970,272.90 = 488,218.20 : x
  2. Step 2: Convert to fraction form
    646,848.60/970,272.90 = 488,218.20/x
  3. Step 3: Cross multiply
    646,848.60x = 970,272.90 × 488,218.20
  4. Step 4: Simplify right side
    646,848.60x = 473,704,888,746.78
  5. Step 5: Solve for x
    x = 473,704,888,746.78/646,848.60
  6. Step 6: Final answer
    x = 732,327.30

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Half scale
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Double scale
Find fourth proportional to 646,849.60, 970,274.40 and 488,219.20
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.