Home / 816,787.48-1,127,001.54-477,190.12

Finding the Fourth Proportional to 816,787.48, 1,127,001.54 and 477,190.12

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Solution

The fourth proportional to 816,787.48, 1,127,001.54 and 477,190.12 is: 658,425.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,787.48 : 1,127,001.54 = 477,190.12 : x
  2. Step 2: Convert to fraction form
    816,787.48/1,127,001.54 = 477,190.12/x
  3. Step 3: Cross multiply
    816,787.48x = 1,127,001.54 × 477,190.12
  4. Step 4: Simplify right side
    816,787.48x = 537,794,000,112.79
  5. Step 5: Solve for x
    x = 537,794,000,112.79/816,787.48
  6. Step 6: Final answer
    x = 658,425.86

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1.5x scale

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.