Home / 926,139.80-1,388,432.10-482,907.80

Finding the Fourth Proportional to 926,139.80, 1,388,432.10 and 482,907.80

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Solution

The fourth proportional to 926,139.80, 1,388,432.10 and 482,907.80 is: 723,956.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,139.80 : 1,388,432.10 = 482,907.80 : x
  2. Step 2: Convert to fraction form
    926,139.80/1,388,432.10 = 482,907.80/x
  3. Step 3: Cross multiply
    926,139.80x = 1,388,432.10 × 482,907.80
  4. Step 4: Simplify right side
    926,139.80x = 670,484,690,860.38
  5. Step 5: Solve for x
    x = 670,484,690,860.38/926,139.80
  6. Step 6: Final answer
    x = 723,956.24

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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.