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Finding the Fourth Proportional to 615,123.80, 922,685.70 and 591,504.20

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Solution

The fourth proportional to 615,123.80, 922,685.70 and 591,504.20 is: 887,256.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,123.80 : 922,685.70 = 591,504.20 : x
  2. Step 2: Convert to fraction form
    615,123.80/922,685.70 = 591,504.20/x
  3. Step 3: Cross multiply
    615,123.80x = 922,685.70 × 591,504.20
  4. Step 4: Simplify right side
    615,123.80x = 545,772,466,829.94
  5. Step 5: Solve for x
    x = 545,772,466,829.94/615,123.80
  6. Step 6: Final answer
    x = 887,256.30

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1.5x scale

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.