Home / 1,035,220-1,428,102.75-667,600.03

Finding the Fourth Proportional to 1,035,220, 1,428,102.75 and 667,600.03

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Solution

The fourth proportional to 1,035,220, 1,428,102.75 and 667,600.03 is: 920,965.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,035,220 : 1,428,102.75 = 667,600.03 : x
  2. Step 2: Convert to fraction form
    1,035,220/1,428,102.75 = 667,600.03/x
  3. Step 3: Cross multiply
    1,035,220x = 1,428,102.75 × 667,600.03
  4. Step 4: Simplify right side
    1,035,220x = 953,401,438,743.08
  5. Step 5: Solve for x
    x = 953,401,438,743.08/1,035,220
  6. Step 6: Final answer
    x = 920,965.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.