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Finding the Fourth Proportional to 471,569.60, 707,354.40 and 378,257.60

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Solution

The fourth proportional to 471,569.60, 707,354.40 and 378,257.60 is: 567,386.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,569.60 : 707,354.40 = 378,257.60 : x
  2. Step 2: Convert to fraction form
    471,569.60/707,354.40 = 378,257.60/x
  3. Step 3: Cross multiply
    471,569.60x = 707,354.40 × 378,257.60
  4. Step 4: Simplify right side
    471,569.60x = 267,562,177,693.44
  5. Step 5: Solve for x
    x = 267,562,177,693.44/471,569.60
  6. Step 6: Final answer
    x = 567,386.40

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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.