Home / 883,115.22-1,218,380.10-500,920.58

Finding the Fourth Proportional to 883,115.22, 1,218,380.10 and 500,920.58

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Solution

The fourth proportional to 883,115.22, 1,218,380.10 and 500,920.58 is: 691,089.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,115.22 : 1,218,380.10 = 500,920.58 : x
  2. Step 2: Convert to fraction form
    883,115.22/1,218,380.10 = 500,920.58/x
  3. Step 3: Cross multiply
    883,115.22x = 1,218,380.10 × 500,920.58
  4. Step 4: Simplify right side
    883,115.22x = 610,311,666,352.46
  5. Step 5: Solve for x
    x = 610,311,666,352.46/883,115.22
  6. Step 6: Final answer
    x = 691,089.51

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1.5x scale

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.