Home / 916,854.40-1,375,281.60-580,931.20

Finding the Fourth Proportional to 916,854.40, 1,375,281.60 and 580,931.20

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Solution

The fourth proportional to 916,854.40, 1,375,281.60 and 580,931.20 is: 871,396.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,854.40 : 1,375,281.60 = 580,931.20 : x
  2. Step 2: Convert to fraction form
    916,854.40/1,375,281.60 = 580,931.20/x
  3. Step 3: Cross multiply
    916,854.40x = 1,375,281.60 × 580,931.20
  4. Step 4: Simplify right side
    916,854.40x = 798,943,990,225.92
  5. Step 5: Solve for x
    x = 798,943,990,225.92/916,854.40
  6. Step 6: Final answer
    x = 871,396.80

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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.