Home / 783,079.80-1,171,995.30-688,601.40

Finding the Fourth Proportional to 783,079.80, 1,171,995.30 and 688,601.40

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Solution

The fourth proportional to 783,079.80, 1,171,995.30 and 688,601.40 is: 1,030,594.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,079.80 : 1,171,995.30 = 688,601.40 : x
  2. Step 2: Convert to fraction form
    783,079.80/1,171,995.30 = 688,601.40/x
  3. Step 3: Cross multiply
    783,079.80x = 1,171,995.30 × 688,601.40
  4. Step 4: Simplify right side
    783,079.80x = 807,037,604,373.42
  5. Step 5: Solve for x
    x = 807,037,604,373.42/783,079.80
  6. Step 6: Final answer
    x = 1,030,594.33

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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.