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Finding the Fourth Proportional to 654,156.88, 902,744.52 and 396,030.32

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Solution

The fourth proportional to 654,156.88, 902,744.52 and 396,030.32 is: 546,526.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,156.88 : 902,744.52 = 396,030.32 : x
  2. Step 2: Convert to fraction form
    654,156.88/902,744.52 = 396,030.32/x
  3. Step 3: Cross multiply
    654,156.88x = 902,744.52 × 396,030.32
  4. Step 4: Simplify right side
    654,156.88x = 357,514,201,133.85
  5. Step 5: Solve for x
    x = 357,514,201,133.85/654,156.88
  6. Step 6: Final answer
    x = 546,526.70

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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.