Home / 930,931.20-1,396,396.80-836,452.80

Finding the Fourth Proportional to 930,931.20, 1,396,396.80 and 836,452.80

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Solution

The fourth proportional to 930,931.20, 1,396,396.80 and 836,452.80 is: 1,254,679.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,931.20 : 1,396,396.80 = 836,452.80 : x
  2. Step 2: Convert to fraction form
    930,931.20/1,396,396.80 = 836,452.80/x
  3. Step 3: Cross multiply
    930,931.20x = 1,396,396.80 × 836,452.80
  4. Step 4: Simplify right side
    930,931.20x = 1,168,020,013,271.04
  5. Step 5: Solve for x
    x = 1,168,020,013,271.04/930,931.20
  6. Step 6: Final answer
    x = 1,254,679.20

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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.