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Finding the Fourth Proportional to 648,148.59, 894,445.14 and 357,760.26

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Solution

The fourth proportional to 648,148.59, 894,445.14 and 357,760.26 is: 493,709.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,148.59 : 894,445.14 = 357,760.26 : x
  2. Step 2: Convert to fraction form
    648,148.59/894,445.14 = 357,760.26/x
  3. Step 3: Cross multiply
    648,148.59x = 894,445.14 × 357,760.26
  4. Step 4: Simplify right side
    648,148.59x = 319,996,925,842.14
  5. Step 5: Solve for x
    x = 319,996,925,842.14/648,148.59
  6. Step 6: Final answer
    x = 493,709.21

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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.