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Finding the Fourth Proportional to 611,779.20, 844,363.48 and 457,504.56

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Solution

The fourth proportional to 611,779.20, 844,363.48 and 457,504.56 is: 631,437.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,779.20 : 844,363.48 = 457,504.56 : x
  2. Step 2: Convert to fraction form
    611,779.20/844,363.48 = 457,504.56/x
  3. Step 3: Cross multiply
    611,779.20x = 844,363.48 × 457,504.56
  4. Step 4: Simplify right side
    611,779.20x = 386,300,142,397.47
  5. Step 5: Solve for x
    x = 386,300,142,397.47/611,779.20
  6. Step 6: Final answer
    x = 631,437.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.