Home / 916,872.40-1,375,308.60-580,949.20

Finding the Fourth Proportional to 916,872.40, 1,375,308.60 and 580,949.20

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Solution

The fourth proportional to 916,872.40, 1,375,308.60 and 580,949.20 is: 871,423.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,872.40 : 1,375,308.60 = 580,949.20 : x
  2. Step 2: Convert to fraction form
    916,872.40/1,375,308.60 = 580,949.20/x
  3. Step 3: Cross multiply
    916,872.40x = 1,375,308.60 × 580,949.20
  4. Step 4: Simplify right side
    916,872.40x = 798,984,430,923.12
  5. Step 5: Solve for x
    x = 798,984,430,923.12/916,872.40
  6. Step 6: Final answer
    x = 871,423.80

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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.