Home / 1,303,385.42-1,798,158.73-813,069.61

Finding the Fourth Proportional to 1,303,385.42, 1,798,158.73 and 813,069.61

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Solution

The fourth proportional to 1,303,385.42, 1,798,158.73 and 813,069.61 is: 1,121,715.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303,385.42 : 1,798,158.73 = 813,069.61 : x
  2. Step 2: Convert to fraction form
    1,303,385.42/1,798,158.73 = 813,069.61/x
  3. Step 3: Cross multiply
    1,303,385.42x = 1,798,158.73 × 813,069.61
  4. Step 4: Simplify right side
    1,303,385.42x = 1,462,028,217,319.20
  5. Step 5: Solve for x
    x = 1,462,028,217,319.20/1,303,385.42
  6. Step 6: Final answer
    x = 1,121,715.95

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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.