Home / 727,580.40-1,091,370.60-686,246.10

Finding the Fourth Proportional to 727,580.40, 1,091,370.60 and 686,246.10

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Solution

The fourth proportional to 727,580.40, 1,091,370.60 and 686,246.10 is: 1,029,369.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,580.40 : 1,091,370.60 = 686,246.10 : x
  2. Step 2: Convert to fraction form
    727,580.40/1,091,370.60 = 686,246.10/x
  3. Step 3: Cross multiply
    727,580.40x = 1,091,370.60 × 686,246.10
  4. Step 4: Simplify right side
    727,580.40x = 748,948,817,904.66
  5. Step 5: Solve for x
    x = 748,948,817,904.66/727,580.40
  6. Step 6: Final answer
    x = 1,029,369.15

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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.