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Finding the Fourth Proportional to 672,787.04, 928,439.32 and 366,862.65

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Solution

The fourth proportional to 672,787.04, 928,439.32 and 366,862.65 is: 506,266.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,787.04 : 928,439.32 = 366,862.65 : x
  2. Step 2: Convert to fraction form
    672,787.04/928,439.32 = 366,862.65/x
  3. Step 3: Cross multiply
    672,787.04x = 928,439.32 × 366,862.65
  4. Step 4: Simplify right side
    672,787.04x = 340,609,709,299.40
  5. Step 5: Solve for x
    x = 340,609,709,299.40/672,787.04
  6. Step 6: Final answer
    x = 506,266.75

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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.