Home / 723,123.18-1,084,247.24-323,689.50

Finding the Fourth Proportional to 723,123.18, 1,084,247.24 and 323,689.50

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Solution

The fourth proportional to 723,123.18, 1,084,247.24 and 323,689.50 is: 485,338.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,123.18 : 1,084,247.24 = 323,689.50 : x
  2. Step 2: Convert to fraction form
    723,123.18/1,084,247.24 = 323,689.50/x
  3. Step 3: Cross multiply
    723,123.18x = 1,084,247.24 × 323,689.50
  4. Step 4: Simplify right side
    723,123.18x = 350,959,445,373.53
  5. Step 5: Solve for x
    x = 350,959,445,373.53/723,123.18
  6. Step 6: Final answer
    x = 485,338.40

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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.