Home / 712,350.13-983,044.80-385,666.60

Finding the Fourth Proportional to 712,350.13, 983,044.80 and 385,666.60

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Solution

The fourth proportional to 712,350.13, 983,044.80 and 385,666.60 is: 532,220.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,350.13 : 983,044.80 = 385,666.60 : x
  2. Step 2: Convert to fraction form
    712,350.13/983,044.80 = 385,666.60/x
  3. Step 3: Cross multiply
    712,350.13x = 983,044.80 × 385,666.60
  4. Step 4: Simplify right side
    712,350.13x = 379,127,545,663.68
  5. Step 5: Solve for x
    x = 379,127,545,663.68/712,350.13
  6. Step 6: Final answer
    x = 532,220.79

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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.