Home / 785,148.46-1,177,079.05-279,421.46

Finding the Fourth Proportional to 785,148.46, 1,177,079.05 and 279,421.46

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Solution

The fourth proportional to 785,148.46, 1,177,079.05 and 279,421.46 is: 418,903.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,148.46 : 1,177,079.05 = 279,421.46 : x
  2. Step 2: Convert to fraction form
    785,148.46/1,177,079.05 = 279,421.46/x
  3. Step 3: Cross multiply
    785,148.46x = 1,177,079.05 × 279,421.46
  4. Step 4: Simplify right side
    785,148.46x = 328,901,146,686.41
  5. Step 5: Solve for x
    x = 328,901,146,686.41/785,148.46
  6. Step 6: Final answer
    x = 418,903.13

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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.