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Finding the Fourth Proportional to 631,012.40, 944,675.40 and 564,657.20

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Solution

The fourth proportional to 631,012.40, 944,675.40 and 564,657.20 is: 845,336.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,012.40 : 944,675.40 = 564,657.20 : x
  2. Step 2: Convert to fraction form
    631,012.40/944,675.40 = 564,657.20/x
  3. Step 3: Cross multiply
    631,012.40x = 944,675.40 × 564,657.20
  4. Step 4: Simplify right side
    631,012.40x = 533,417,766,272.88
  5. Step 5: Solve for x
    x = 533,417,766,272.88/631,012.40
  6. Step 6: Final answer
    x = 845,336.42

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Double scale
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Similar ratio
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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.