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Finding the Fourth Proportional to 360,979.13, 497,038.52 and 320,622.77

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Solution

The fourth proportional to 360,979.13, 497,038.52 and 320,622.77 is: 441,471.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,979.13 : 497,038.52 = 320,622.77 : x
  2. Step 2: Convert to fraction form
    360,979.13/497,038.52 = 320,622.77/x
  3. Step 3: Cross multiply
    360,979.13x = 497,038.52 × 320,622.77
  4. Step 4: Simplify right side
    360,979.13x = 159,361,865,395.47
  5. Step 5: Solve for x
    x = 159,361,865,395.47/360,979.13
  6. Step 6: Final answer
    x = 441,471.14

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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.