Home / 997,223.04-1,375,689.12-724,868.64

Finding the Fourth Proportional to 997,223.04, 1,375,689.12 and 724,868.64

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Solution

The fourth proportional to 997,223.04, 1,375,689.12 and 724,868.64 is: 999,970.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,223.04 : 1,375,689.12 = 724,868.64 : x
  2. Step 2: Convert to fraction form
    997,223.04/1,375,689.12 = 724,868.64/x
  3. Step 3: Cross multiply
    997,223.04x = 1,375,689.12 × 724,868.64
  4. Step 4: Simplify right side
    997,223.04x = 997,193,901,477.20
  5. Step 5: Solve for x
    x = 997,193,901,477.20/997,223.04
  6. Step 6: Final answer
    x = 999,970.78

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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.