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Finding the Fourth Proportional to 907.01, 1,358.46 and 633.30

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Solution

The fourth proportional to 907.01, 1,358.46 and 633.30 is: 948.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    907.01 : 1,358.46 = 633.30 : x
  2. Step 2: Convert to fraction form
    907.01/1,358.46 = 633.30/x
  3. Step 3: Cross multiply
    907.01x = 1,358.46 × 633.30
  4. Step 4: Simplify right side
    907.01x = 860,312.72
  5. Step 5: Solve for x
    x = 860,312.72/907.01
  6. Step 6: Final answer
    x = 948.52

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Double scale
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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.