Home / 744,153.60-1,116,230.40-445,555.20

Finding the Fourth Proportional to 744,153.60, 1,116,230.40 and 445,555.20

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Solution

The fourth proportional to 744,153.60, 1,116,230.40 and 445,555.20 is: 668,332.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,153.60 : 1,116,230.40 = 445,555.20 : x
  2. Step 2: Convert to fraction form
    744,153.60/1,116,230.40 = 445,555.20/x
  3. Step 3: Cross multiply
    744,153.60x = 1,116,230.40 × 445,555.20
  4. Step 4: Simplify right side
    744,153.60x = 497,342,259,118.08
  5. Step 5: Solve for x
    x = 497,342,259,118.08/744,153.60
  6. Step 6: Final answer
    x = 668,332.80

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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.