Home / 727,434.30-1,091,151.45-664,448.70

Finding the Fourth Proportional to 727,434.30, 1,091,151.45 and 664,448.70

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Solution

The fourth proportional to 727,434.30, 1,091,151.45 and 664,448.70 is: 996,673.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,434.30 : 1,091,151.45 = 664,448.70 : x
  2. Step 2: Convert to fraction form
    727,434.30/1,091,151.45 = 664,448.70/x
  3. Step 3: Cross multiply
    727,434.30x = 1,091,151.45 × 664,448.70
  4. Step 4: Simplify right side
    727,434.30x = 725,014,162,455.62
  5. Step 5: Solve for x
    x = 725,014,162,455.62/727,434.30
  6. Step 6: Final answer
    x = 996,673.05

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Double scale
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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.