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Finding the Fourth Proportional to 708,287.04, 977,423.22 and 385,999.92

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Solution

The fourth proportional to 708,287.04, 977,423.22 and 385,999.92 is: 532,672.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,287.04 : 977,423.22 = 385,999.92 : x
  2. Step 2: Convert to fraction form
    708,287.04/977,423.22 = 385,999.92/x
  3. Step 3: Cross multiply
    708,287.04x = 977,423.22 × 385,999.92
  4. Step 4: Simplify right side
    708,287.04x = 377,285,284,726.14
  5. Step 5: Solve for x
    x = 377,285,284,726.14/708,287.04
  6. Step 6: Final answer
    x = 532,672.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.