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Finding the Fourth Proportional to 598,925.70, 898,388.55 and 430,089.30

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Solution

The fourth proportional to 598,925.70, 898,388.55 and 430,089.30 is: 645,133.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,925.70 : 898,388.55 = 430,089.30 : x
  2. Step 2: Convert to fraction form
    598,925.70/898,388.55 = 430,089.30/x
  3. Step 3: Cross multiply
    598,925.70x = 898,388.55 × 430,089.30
  4. Step 4: Simplify right side
    598,925.70x = 386,387,302,597.52
  5. Step 5: Solve for x
    x = 386,387,302,597.52/598,925.70
  6. Step 6: Final answer
    x = 645,133.95

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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.