Home / 930,964.80-1,397,138.40-370,401.60

Finding the Fourth Proportional to 930,964.80, 1,397,138.40 and 370,401.60

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Solution

The fourth proportional to 930,964.80, 1,397,138.40 and 370,401.60 is: 555,877.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,964.80 : 1,397,138.40 = 370,401.60 : x
  2. Step 2: Convert to fraction form
    930,964.80/1,397,138.40 = 370,401.60/x
  3. Step 3: Cross multiply
    930,964.80x = 1,397,138.40 × 370,401.60
  4. Step 4: Simplify right side
    930,964.80x = 517,502,298,781.44
  5. Step 5: Solve for x
    x = 517,502,298,781.44/930,964.80
  6. Step 6: Final answer
    x = 555,877.41

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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.