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Finding the Fourth Proportional to 898.02, 1,237.98 and 632.10

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Solution

The fourth proportional to 898.02, 1,237.98 and 632.10 is: 871.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    898.02 : 1,237.98 = 632.10 : x
  2. Step 2: Convert to fraction form
    898.02/1,237.98 = 632.10/x
  3. Step 3: Cross multiply
    898.02x = 1,237.98 × 632.10
  4. Step 4: Simplify right side
    898.02x = 782,527.16
  5. Step 5: Solve for x
    x = 782,527.16/898.02
  6. Step 6: Final answer
    x = 871.39

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Double scale
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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.