Home / 727,217.70-1,090,826.55-328,308.90

Finding the Fourth Proportional to 727,217.70, 1,090,826.55 and 328,308.90

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Solution

The fourth proportional to 727,217.70, 1,090,826.55 and 328,308.90 is: 492,463.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,217.70 : 1,090,826.55 = 328,308.90 : x
  2. Step 2: Convert to fraction form
    727,217.70/1,090,826.55 = 328,308.90/x
  3. Step 3: Cross multiply
    727,217.70x = 1,090,826.55 × 328,308.90
  4. Step 4: Simplify right side
    727,217.70x = 358,128,064,721.30
  5. Step 5: Solve for x
    x = 358,128,064,721.30/727,217.70
  6. Step 6: Final answer
    x = 492,463.35

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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.