Home / 715,246.40-1,073,560.80-435,310.40

Finding the Fourth Proportional to 715,246.40, 1,073,560.80 and 435,310.40

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Solution

The fourth proportional to 715,246.40, 1,073,560.80 and 435,310.40 is: 653,386.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,246.40 : 1,073,560.80 = 435,310.40 : x
  2. Step 2: Convert to fraction form
    715,246.40/1,073,560.80 = 435,310.40/x
  3. Step 3: Cross multiply
    715,246.40x = 1,073,560.80 × 435,310.40
  4. Step 4: Simplify right side
    715,246.40x = 467,332,181,272.32
  5. Step 5: Solve for x
    x = 467,332,181,272.32/715,246.40
  6. Step 6: Final answer
    x = 653,386.28

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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.