Home / 749,237.10-1,123,855.65-429,060.30

Finding the Fourth Proportional to 749,237.10, 1,123,855.65 and 429,060.30

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Solution

The fourth proportional to 749,237.10, 1,123,855.65 and 429,060.30 is: 643,590.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,237.10 : 1,123,855.65 = 429,060.30 : x
  2. Step 2: Convert to fraction form
    749,237.10/1,123,855.65 = 429,060.30/x
  3. Step 3: Cross multiply
    749,237.10x = 1,123,855.65 × 429,060.30
  4. Step 4: Simplify right side
    749,237.10x = 482,201,842,345.70
  5. Step 5: Solve for x
    x = 482,201,842,345.70/749,237.10
  6. Step 6: Final answer
    x = 643,590.45

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Half scale
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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.