Home / 738,720.90-1,108,081.35-265,421.70

Finding the Fourth Proportional to 738,720.90, 1,108,081.35 and 265,421.70

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Solution

The fourth proportional to 738,720.90, 1,108,081.35 and 265,421.70 is: 398,132.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,720.90 : 1,108,081.35 = 265,421.70 : x
  2. Step 2: Convert to fraction form
    738,720.90/1,108,081.35 = 265,421.70/x
  3. Step 3: Cross multiply
    738,720.90x = 1,108,081.35 × 265,421.70
  4. Step 4: Simplify right side
    738,720.90x = 294,108,835,655.30
  5. Step 5: Solve for x
    x = 294,108,835,655.30/738,720.90
  6. Step 6: Final answer
    x = 398,132.55

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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.