Home / 790,977.39-1,186,521.96-391,510.91

Finding the Fourth Proportional to 790,977.39, 1,186,521.96 and 391,510.91

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Solution

The fourth proportional to 790,977.39, 1,186,521.96 and 391,510.91 is: 587,294.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,977.39 : 1,186,521.96 = 391,510.91 : x
  2. Step 2: Convert to fraction form
    790,977.39/1,186,521.96 = 391,510.91/x
  3. Step 3: Cross multiply
    790,977.39x = 1,186,521.96 × 391,510.91
  4. Step 4: Simplify right side
    790,977.39x = 464,536,292,290.84
  5. Step 5: Solve for x
    x = 464,536,292,290.84/790,977.39
  6. Step 6: Final answer
    x = 587,294.02

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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.