Home / 1,123,130.60-1,685,279.10-492,108.20

Finding the Fourth Proportional to 1,123,130.60, 1,685,279.10 and 492,108.20

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Solution

The fourth proportional to 1,123,130.60, 1,685,279.10 and 492,108.20 is: 738,417.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,130.60 : 1,685,279.10 = 492,108.20 : x
  2. Step 2: Convert to fraction form
    1,123,130.60/1,685,279.10 = 492,108.20/x
  3. Step 3: Cross multiply
    1,123,130.60x = 1,685,279.10 × 492,108.20
  4. Step 4: Simplify right side
    1,123,130.60x = 829,339,664,398.62
  5. Step 5: Solve for x
    x = 829,339,664,398.62/1,123,130.60
  6. Step 6: Final answer
    x = 738,417.83

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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.