Home / 1,087,209.60-1,629,502.20-554,456.40

Finding the Fourth Proportional to 1,087,209.60, 1,629,502.20 and 554,456.40

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Solution

The fourth proportional to 1,087,209.60, 1,629,502.20 and 554,456.40 is: 831,015.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,209.60 : 1,629,502.20 = 554,456.40 : x
  2. Step 2: Convert to fraction form
    1,087,209.60/1,629,502.20 = 554,456.40/x
  3. Step 3: Cross multiply
    1,087,209.60x = 1,629,502.20 × 554,456.40
  4. Step 4: Simplify right side
    1,087,209.60x = 903,487,923,604.08
  5. Step 5: Solve for x
    x = 903,487,923,604.08/1,087,209.60
  6. Step 6: Final answer
    x = 831,015.40

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Double scale
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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.