Home / 926,438.40-1,389,657.60-327,419.10

Finding the Fourth Proportional to 926,438.40, 1,389,657.60 and 327,419.10

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Solution

The fourth proportional to 926,438.40, 1,389,657.60 and 327,419.10 is: 491,128.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,438.40 : 1,389,657.60 = 327,419.10 : x
  2. Step 2: Convert to fraction form
    926,438.40/1,389,657.60 = 327,419.10/x
  3. Step 3: Cross multiply
    926,438.40x = 1,389,657.60 × 327,419.10
  4. Step 4: Simplify right side
    926,438.40x = 455,000,440,700.16
  5. Step 5: Solve for x
    x = 455,000,440,700.16/926,438.40
  6. Step 6: Final answer
    x = 491,128.65

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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.