Home / 813,011.18-1,121,862.96-450,344.61

Finding the Fourth Proportional to 813,011.18, 1,121,862.96 and 450,344.61

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Solution

The fourth proportional to 813,011.18, 1,121,862.96 and 450,344.61 is: 621,424.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,011.18 : 1,121,862.96 = 450,344.61 : x
  2. Step 2: Convert to fraction form
    813,011.18/1,121,862.96 = 450,344.61/x
  3. Step 3: Cross multiply
    813,011.18x = 1,121,862.96 × 450,344.61
  4. Step 4: Simplify right side
    813,011.18x = 505,224,937,194.65
  5. Step 5: Solve for x
    x = 505,224,937,194.65/813,011.18
  6. Step 6: Final answer
    x = 621,424.35

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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.