Home / 1,307,785.76-1,961,715.45-361,156.47

Finding the Fourth Proportional to 1,307,785.76, 1,961,715.45 and 361,156.47

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Solution

The fourth proportional to 1,307,785.76, 1,961,715.45 and 361,156.47 is: 541,744.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,785.76 : 1,961,715.45 = 361,156.47 : x
  2. Step 2: Convert to fraction form
    1,307,785.76/1,961,715.45 = 361,156.47/x
  3. Step 3: Cross multiply
    1,307,785.76x = 1,961,715.45 × 361,156.47
  4. Step 4: Simplify right side
    1,307,785.76x = 708,486,227,066.46
  5. Step 5: Solve for x
    x = 708,486,227,066.46/1,307,785.76
  6. Step 6: Final answer
    x = 541,744.87

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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.