Home / 753,774.60-1,130,661.90-455,176.20

Finding the Fourth Proportional to 753,774.60, 1,130,661.90 and 455,176.20

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Solution

The fourth proportional to 753,774.60, 1,130,661.90 and 455,176.20 is: 682,764.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,774.60 : 1,130,661.90 = 455,176.20 : x
  2. Step 2: Convert to fraction form
    753,774.60/1,130,661.90 = 455,176.20/x
  3. Step 3: Cross multiply
    753,774.60x = 1,130,661.90 × 455,176.20
  4. Step 4: Simplify right side
    753,774.60x = 514,650,387,126.78
  5. Step 5: Solve for x
    x = 514,650,387,126.78/753,774.60
  6. Step 6: Final answer
    x = 682,764.30

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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.