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Finding the Fourth Proportional to 507,565.64, 700,440.72 and 278,121.04

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Solution

The fourth proportional to 507,565.64, 700,440.72 and 278,121.04 is: 383,807.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,565.64 : 700,440.72 = 278,121.04 : x
  2. Step 2: Convert to fraction form
    507,565.64/700,440.72 = 278,121.04/x
  3. Step 3: Cross multiply
    507,565.64x = 700,440.72 × 278,121.04
  4. Step 4: Simplify right side
    507,565.64x = 194,807,301,504.75
  5. Step 5: Solve for x
    x = 194,807,301,504.75/507,565.64
  6. Step 6: Final answer
    x = 383,807.11

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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.