Home / 783,712.58-1,081,064.02-492,862.82

Finding the Fourth Proportional to 783,712.58, 1,081,064.02 and 492,862.82

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Solution

The fourth proportional to 783,712.58, 1,081,064.02 and 492,862.82 is: 679,861.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,712.58 : 1,081,064.02 = 492,862.82 : x
  2. Step 2: Convert to fraction form
    783,712.58/1,081,064.02 = 492,862.82/x
  3. Step 3: Cross multiply
    783,712.58x = 1,081,064.02 × 492,862.82
  4. Step 4: Simplify right side
    783,712.58x = 532,816,261,497.74
  5. Step 5: Solve for x
    x = 532,816,261,497.74/783,712.58
  6. Step 6: Final answer
    x = 679,861.82

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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.