Home / 538,421.10-807,631.65-528,053.10

Finding the Fourth Proportional to 538,421.10, 807,631.65 and 528,053.10

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Solution

The fourth proportional to 538,421.10, 807,631.65 and 528,053.10 is: 792,079.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,421.10 : 807,631.65 = 528,053.10 : x
  2. Step 2: Convert to fraction form
    538,421.10/807,631.65 = 528,053.10/x
  3. Step 3: Cross multiply
    538,421.10x = 807,631.65 × 528,053.10
  4. Step 4: Simplify right side
    538,421.10x = 426,472,396,440.62
  5. Step 5: Solve for x
    x = 426,472,396,440.62/538,421.10
  6. Step 6: Final answer
    x = 792,079.65

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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.