Home / 816,957.02-1,127,321.72-472,724.30

Finding the Fourth Proportional to 816,957.02, 1,127,321.72 and 472,724.30

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Solution

The fourth proportional to 816,957.02, 1,127,321.72 and 472,724.30 is: 652,313.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,957.02 : 1,127,321.72 = 472,724.30 : x
  2. Step 2: Convert to fraction form
    816,957.02/1,127,321.72 = 472,724.30/x
  3. Step 3: Cross multiply
    816,957.02x = 1,127,321.72 × 472,724.30
  4. Step 4: Simplify right side
    816,957.02x = 532,912,370,961.80
  5. Step 5: Solve for x
    x = 532,912,370,961.80/816,957.02
  6. Step 6: Final answer
    x = 652,313.84

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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.