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Finding the Fourth Proportional to 644,493.40, 966,740.10 and 497,037.40

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Solution

The fourth proportional to 644,493.40, 966,740.10 and 497,037.40 is: 745,556.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,493.40 : 966,740.10 = 497,037.40 : x
  2. Step 2: Convert to fraction form
    644,493.40/966,740.10 = 497,037.40/x
  3. Step 3: Cross multiply
    644,493.40x = 966,740.10 × 497,037.40
  4. Step 4: Simplify right side
    644,493.40x = 480,505,985,779.74
  5. Step 5: Solve for x
    x = 480,505,985,779.74/644,493.40
  6. Step 6: Final answer
    x = 745,556.10

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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.