Home / 1,380,908.80-2,071,363.20-434,569.60

Finding the Fourth Proportional to 1,380,908.80, 2,071,363.20 and 434,569.60

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Solution

The fourth proportional to 1,380,908.80, 2,071,363.20 and 434,569.60 is: 651,854.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,908.80 : 2,071,363.20 = 434,569.60 : x
  2. Step 2: Convert to fraction form
    1,380,908.80/2,071,363.20 = 434,569.60/x
  3. Step 3: Cross multiply
    1,380,908.80x = 2,071,363.20 × 434,569.60
  4. Step 4: Simplify right side
    1,380,908.80x = 900,151,477,278.72
  5. Step 5: Solve for x
    x = 900,151,477,278.72/1,380,908.80
  6. Step 6: Final answer
    x = 651,854.40

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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.