Home / 730,511.60-1,095,767.40-431,135.60

Finding the Fourth Proportional to 730,511.60, 1,095,767.40 and 431,135.60

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Solution

The fourth proportional to 730,511.60, 1,095,767.40 and 431,135.60 is: 646,703.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,511.60 : 1,095,767.40 = 431,135.60 : x
  2. Step 2: Convert to fraction form
    730,511.60/1,095,767.40 = 431,135.60/x
  3. Step 3: Cross multiply
    730,511.60x = 1,095,767.40 × 431,135.60
  4. Step 4: Simplify right side
    730,511.60x = 472,424,335,459.44
  5. Step 5: Solve for x
    x = 472,424,335,459.44/730,511.60
  6. Step 6: Final answer
    x = 646,703.40

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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.