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Finding the Fourth Proportional to 653,412.04, 980,115.30 and 254,331.12

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Solution

The fourth proportional to 653,412.04, 980,115.30 and 254,331.12 is: 381,495.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,412.04 : 980,115.30 = 254,331.12 : x
  2. Step 2: Convert to fraction form
    653,412.04/980,115.30 = 254,331.12/x
  3. Step 3: Cross multiply
    653,412.04x = 980,115.30 × 254,331.12
  4. Step 4: Simplify right side
    653,412.04x = 249,273,821,978.14
  5. Step 5: Solve for x
    x = 249,273,821,978.14/653,412.04
  6. Step 6: Final answer
    x = 381,495.61

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1.5x scale

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.