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Finding the Fourth Proportional to 578,001.28, 797,587.68 and 360,189.76

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Solution

The fourth proportional to 578,001.28, 797,587.68 and 360,189.76 is: 497,028.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,001.28 : 797,587.68 = 360,189.76 : x
  2. Step 2: Convert to fraction form
    578,001.28/797,587.68 = 360,189.76/x
  3. Step 3: Cross multiply
    578,001.28x = 797,587.68 × 360,189.76
  4. Step 4: Simplify right side
    578,001.28x = 287,282,915,038.16
  5. Step 5: Solve for x
    x = 287,282,915,038.16/578,001.28
  6. Step 6: Final answer
    x = 497,028.16

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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.