Home / 1,493,267.70-2,239,901.55-428,417.40

Finding the Fourth Proportional to 1,493,267.70, 2,239,901.55 and 428,417.40

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Solution

The fourth proportional to 1,493,267.70, 2,239,901.55 and 428,417.40 is: 642,626.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,493,267.70 : 2,239,901.55 = 428,417.40 : x
  2. Step 2: Convert to fraction form
    1,493,267.70/2,239,901.55 = 428,417.40/x
  3. Step 3: Cross multiply
    1,493,267.70x = 2,239,901.55 × 428,417.40
  4. Step 4: Simplify right side
    1,493,267.70x = 959,612,798,306.97
  5. Step 5: Solve for x
    x = 959,612,798,306.97/1,493,267.70
  6. Step 6: Final answer
    x = 642,626.10

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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.