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Finding the Fourth Proportional to 638,565.30, 957,410.55 and 301,767.30

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Solution

The fourth proportional to 638,565.30, 957,410.55 and 301,767.30 is: 452,444.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,565.30 : 957,410.55 = 301,767.30 : x
  2. Step 2: Convert to fraction form
    638,565.30/957,410.55 = 301,767.30/x
  3. Step 3: Cross multiply
    638,565.30x = 957,410.55 × 301,767.30
  4. Step 4: Simplify right side
    638,565.30x = 288,915,196,665.02
  5. Step 5: Solve for x
    x = 288,915,196,665.02/638,565.30
  6. Step 6: Final answer
    x = 452,444.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.