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Finding the Fourth Proportional to 652,047.20, 978,070.80 and 337,119.20

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Solution

The fourth proportional to 652,047.20, 978,070.80 and 337,119.20 is: 505,678.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,047.20 : 978,070.80 = 337,119.20 : x
  2. Step 2: Convert to fraction form
    652,047.20/978,070.80 = 337,119.20/x
  3. Step 3: Cross multiply
    652,047.20x = 978,070.80 × 337,119.20
  4. Step 4: Simplify right side
    652,047.20x = 329,726,445,639.36
  5. Step 5: Solve for x
    x = 329,726,445,639.36/652,047.20
  6. Step 6: Final answer
    x = 505,678.80

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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.