Home / 991,555.92-1,487,281.68-581,453.28

Finding the Fourth Proportional to 991,555.92, 1,487,281.68 and 581,453.28

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Solution

The fourth proportional to 991,555.92, 1,487,281.68 and 581,453.28 is: 872,149.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,555.92 : 1,487,281.68 = 581,453.28 : x
  2. Step 2: Convert to fraction form
    991,555.92/1,487,281.68 = 581,453.28/x
  3. Step 3: Cross multiply
    991,555.92x = 1,487,281.68 × 581,453.28
  4. Step 4: Simplify right side
    991,555.92x = 864,784,811,119.91
  5. Step 5: Solve for x
    x = 864,784,811,119.91/991,555.92
  6. Step 6: Final answer
    x = 872,149.31

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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.