Home / 914,352.30-1,371,594.20-315,304.79

Finding the Fourth Proportional to 914,352.30, 1,371,594.20 and 315,304.79

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Solution

The fourth proportional to 914,352.30, 1,371,594.20 and 315,304.79 is: 472,979.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,352.30 : 1,371,594.20 = 315,304.79 : x
  2. Step 2: Convert to fraction form
    914,352.30/1,371,594.20 = 315,304.79/x
  3. Step 3: Cross multiply
    914,352.30x = 1,371,594.20 × 315,304.79
  4. Step 4: Simplify right side
    914,352.30x = 432,470,212,761.72
  5. Step 5: Solve for x
    x = 432,470,212,761.72/914,352.30
  6. Step 6: Final answer
    x = 472,979.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.