Home / 1,124,806.80-1,687,210.20-326,114.40

Finding the Fourth Proportional to 1,124,806.80, 1,687,210.20 and 326,114.40

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Solution

The fourth proportional to 1,124,806.80, 1,687,210.20 and 326,114.40 is: 489,171.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,806.80 : 1,687,210.20 = 326,114.40 : x
  2. Step 2: Convert to fraction form
    1,124,806.80/1,687,210.20 = 326,114.40/x
  3. Step 3: Cross multiply
    1,124,806.80x = 1,687,210.20 × 326,114.40
  4. Step 4: Simplify right side
    1,124,806.80x = 550,223,542,046.88
  5. Step 5: Solve for x
    x = 550,223,542,046.88/1,124,806.80
  6. Step 6: Final answer
    x = 489,171.60

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Double scale
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Similar ratio
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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.