Home / 860,671.28-1,187,643.16-498,022.80

Finding the Fourth Proportional to 860,671.28, 1,187,643.16 and 498,022.80

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Solution

The fourth proportional to 860,671.28, 1,187,643.16 and 498,022.80 is: 687,223.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,671.28 : 1,187,643.16 = 498,022.80 : x
  2. Step 2: Convert to fraction form
    860,671.28/1,187,643.16 = 498,022.80/x
  3. Step 3: Cross multiply
    860,671.28x = 1,187,643.16 × 498,022.80
  4. Step 4: Simplify right side
    860,671.28x = 591,473,371,944.05
  5. Step 5: Solve for x
    x = 591,473,371,944.05/860,671.28
  6. Step 6: Final answer
    x = 687,223.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.