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Finding the Fourth Proportional to 615,087.80, 922,890.90 and 334,806.20

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Solution

The fourth proportional to 615,087.80, 922,890.90 and 334,806.20 is: 502,350.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,087.80 : 922,890.90 = 334,806.20 : x
  2. Step 2: Convert to fraction form
    615,087.80/922,890.90 = 334,806.20/x
  3. Step 3: Cross multiply
    615,087.80x = 922,890.90 × 334,806.20
  4. Step 4: Simplify right side
    615,087.80x = 308,989,595,243.58
  5. Step 5: Solve for x
    x = 308,989,595,243.58/615,087.80
  6. Step 6: Final answer
    x = 502,350.39

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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.