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Finding the Fourth Proportional to 437,805.60, 657,226.80 and 434,695.20

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Solution

The fourth proportional to 437,805.60, 657,226.80 and 434,695.20 is: 652,557.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,805.60 : 657,226.80 = 434,695.20 : x
  2. Step 2: Convert to fraction form
    437,805.60/657,226.80 = 434,695.20/x
  3. Step 3: Cross multiply
    437,805.60x = 657,226.80 × 434,695.20
  4. Step 4: Simplify right side
    437,805.60x = 285,693,335,271.36
  5. Step 5: Solve for x
    x = 285,693,335,271.36/437,805.60
  6. Step 6: Final answer
    x = 652,557.52

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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.