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Finding the Fourth Proportional to 508,435.52, 701,627.66 and 278,992.10

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Solution

The fourth proportional to 508,435.52, 701,627.66 and 278,992.10 is: 385,001.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,435.52 : 701,627.66 = 278,992.10 : x
  2. Step 2: Convert to fraction form
    508,435.52/701,627.66 = 278,992.10/x
  3. Step 3: Cross multiply
    508,435.52x = 701,627.66 × 278,992.10
  4. Step 4: Simplify right side
    508,435.52x = 195,748,574,281.49
  5. Step 5: Solve for x
    x = 195,748,574,281.49/508,435.52
  6. Step 6: Final answer
    x = 385,001.77

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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.