Home / 742,084.47-1,024,076.88-419,787.72

Finding the Fourth Proportional to 742,084.47, 1,024,076.88 and 419,787.72

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Solution

The fourth proportional to 742,084.47, 1,024,076.88 and 419,787.72 is: 579,307.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,084.47 : 1,024,076.88 = 419,787.72 : x
  2. Step 2: Convert to fraction form
    742,084.47/1,024,076.88 = 419,787.72/x
  3. Step 3: Cross multiply
    742,084.47x = 1,024,076.88 × 419,787.72
  4. Step 4: Simplify right side
    742,084.47x = 429,894,898,559.91
  5. Step 5: Solve for x
    x = 429,894,898,559.91/742,084.47
  6. Step 6: Final answer
    x = 579,307.23

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Double scale
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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.