Home / 1,240,393.38-1,859,409.06-398,354.64

Finding the Fourth Proportional to 1,240,393.38, 1,859,409.06 and 398,354.64

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Solution

The fourth proportional to 1,240,393.38, 1,859,409.06 and 398,354.64 is: 597,152.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,393.38 : 1,859,409.06 = 398,354.64 : x
  2. Step 2: Convert to fraction form
    1,240,393.38/1,859,409.06 = 398,354.64/x
  3. Step 3: Cross multiply
    1,240,393.38x = 1,859,409.06 × 398,354.64
  4. Step 4: Simplify right side
    1,240,393.38x = 740,704,226,709.04
  5. Step 5: Solve for x
    x = 740,704,226,709.04/1,240,393.38
  6. Step 6: Final answer
    x = 597,152.68

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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.