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Finding the Fourth Proportional to 653,069.20, 978,394.20 and 371,750.80

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Solution

The fourth proportional to 653,069.20, 978,394.20 and 371,750.80 is: 556,937.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,069.20 : 978,394.20 = 371,750.80 : x
  2. Step 2: Convert to fraction form
    653,069.20/978,394.20 = 371,750.80/x
  3. Step 3: Cross multiply
    653,069.20x = 978,394.20 × 371,750.80
  4. Step 4: Simplify right side
    653,069.20x = 363,718,826,565.36
  5. Step 5: Solve for x
    x = 363,718,826,565.36/653,069.20
  6. Step 6: Final answer
    x = 556,937.65

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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.