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Finding the Fourth Proportional to 652,125.80, 978,480.30 and 315,036.20

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Solution

The fourth proportional to 652,125.80, 978,480.30 and 315,036.20 is: 472,695.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,125.80 : 978,480.30 = 315,036.20 : x
  2. Step 2: Convert to fraction form
    652,125.80/978,480.30 = 315,036.20/x
  3. Step 3: Cross multiply
    652,125.80x = 978,480.30 × 315,036.20
  4. Step 4: Simplify right side
    652,125.80x = 308,256,715,486.86
  5. Step 5: Solve for x
    x = 308,256,715,486.86/652,125.80
  6. Step 6: Final answer
    x = 472,695.17

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