Home / 1,107,308.80-1,660,963.20-359,430.40

Finding the Fourth Proportional to 1,107,308.80, 1,660,963.20 and 359,430.40

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Solution

The fourth proportional to 1,107,308.80, 1,660,963.20 and 359,430.40 is: 539,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,308.80 : 1,660,963.20 = 359,430.40 : x
  2. Step 2: Convert to fraction form
    1,107,308.80/1,660,963.20 = 359,430.40/x
  3. Step 3: Cross multiply
    1,107,308.80x = 1,660,963.20 × 359,430.40
  4. Step 4: Simplify right side
    1,107,308.80x = 597,000,667,361.28
  5. Step 5: Solve for x
    x = 597,000,667,361.28/1,107,308.80
  6. Step 6: Final answer
    x = 539,145.60

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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.