Home / 1,120,208.40-1,680,312.60-372,254.40

Finding the Fourth Proportional to 1,120,208.40, 1,680,312.60 and 372,254.40

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Solution

The fourth proportional to 1,120,208.40, 1,680,312.60 and 372,254.40 is: 558,381.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,208.40 : 1,680,312.60 = 372,254.40 : x
  2. Step 2: Convert to fraction form
    1,120,208.40/1,680,312.60 = 372,254.40/x
  3. Step 3: Cross multiply
    1,120,208.40x = 1,680,312.60 × 372,254.40
  4. Step 4: Simplify right side
    1,120,208.40x = 625,503,758,725.44
  5. Step 5: Solve for x
    x = 625,503,758,725.44/1,120,208.40
  6. Step 6: Final answer
    x = 558,381.60

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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.