Home / 746,442.60-1,120,830.30-431,514.60

Finding the Fourth Proportional to 746,442.60, 1,120,830.30 and 431,514.60

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Solution

The fourth proportional to 746,442.60, 1,120,830.30 and 431,514.60 is: 647,946.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,442.60 : 1,120,830.30 = 431,514.60 : x
  2. Step 2: Convert to fraction form
    746,442.60/1,120,830.30 = 431,514.60/x
  3. Step 3: Cross multiply
    746,442.60x = 1,120,830.30 × 431,514.60
  4. Step 4: Simplify right side
    746,442.60x = 483,654,638,572.38
  5. Step 5: Solve for x
    x = 483,654,638,572.38/746,442.60
  6. Step 6: Final answer
    x = 647,946.19

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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.