Home / 812,023.15-1,218,454.71-589,220.50

Finding the Fourth Proportional to 812,023.15, 1,218,454.71 and 589,220.50

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Solution

The fourth proportional to 812,023.15, 1,218,454.71 and 589,220.50 is: 884,135.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,023.15 : 1,218,454.71 = 589,220.50 : x
  2. Step 2: Convert to fraction form
    812,023.15/1,218,454.71 = 589,220.50/x
  3. Step 3: Cross multiply
    812,023.15x = 1,218,454.71 × 589,220.50
  4. Step 4: Simplify right side
    812,023.15x = 717,938,488,197.84
  5. Step 5: Solve for x
    x = 717,938,488,197.84/812,023.15
  6. Step 6: Final answer
    x = 884,135.50

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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.