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Finding the Fourth Proportional to 508,539.04, 701,920.02 and 317,437.36

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Solution

The fourth proportional to 508,539.04, 701,920.02 and 317,437.36 is: 438,148.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,539.04 : 701,920.02 = 317,437.36 : x
  2. Step 2: Convert to fraction form
    508,539.04/701,920.02 = 317,437.36/x
  3. Step 3: Cross multiply
    508,539.04x = 701,920.02 × 317,437.36
  4. Step 4: Simplify right side
    508,539.04x = 222,815,638,079.95
  5. Step 5: Solve for x
    x = 222,815,638,079.95/508,539.04
  6. Step 6: Final answer
    x = 438,148.54

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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.