Home / 1,439,158.78-2,158,590.24-479,510.74

Finding the Fourth Proportional to 1,439,158.78, 2,158,590.24 and 479,510.74

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Solution

The fourth proportional to 1,439,158.78, 2,158,590.24 and 479,510.74 is: 719,216.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,158.78 : 2,158,590.24 = 479,510.74 : x
  2. Step 2: Convert to fraction form
    1,439,158.78/2,158,590.24 = 479,510.74/x
  3. Step 3: Cross multiply
    1,439,158.78x = 2,158,590.24 × 479,510.74
  4. Step 4: Simplify right side
    1,439,158.78x = 1,035,067,203,339.18
  5. Step 5: Solve for x
    x = 1,035,067,203,339.18/1,439,158.78
  6. Step 6: Final answer
    x = 719,216.82

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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.