Home / 727,431.20-1,091,146.80-328,522.40

Finding the Fourth Proportional to 727,431.20, 1,091,146.80 and 328,522.40

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Solution

The fourth proportional to 727,431.20, 1,091,146.80 and 328,522.40 is: 492,783.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,431.20 : 1,091,146.80 = 328,522.40 : x
  2. Step 2: Convert to fraction form
    727,431.20/1,091,146.80 = 328,522.40/x
  3. Step 3: Cross multiply
    727,431.20x = 1,091,146.80 × 328,522.40
  4. Step 4: Simplify right side
    727,431.20x = 358,466,165,488.32
  5. Step 5: Solve for x
    x = 358,466,165,488.32/727,431.20
  6. Step 6: Final answer
    x = 492,783.60

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Similar ratio
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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.