Home / 1,510,781.24-2,085,000-866,261.40

Finding the Fourth Proportional to 1,510,781.24, 2,085,000 and 866,261.40

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Solution

The fourth proportional to 1,510,781.24, 2,085,000 and 866,261.40 is: 1,195,510.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510,781.24 : 2,085,000 = 866,261.40 : x
  2. Step 2: Convert to fraction form
    1,510,781.24/2,085,000 = 866,261.40/x
  3. Step 3: Cross multiply
    1,510,781.24x = 2,085,000 × 866,261.40
  4. Step 4: Simplify right side
    1,510,781.24x = 1,806,155,019,000
  5. Step 5: Solve for x
    x = 1,806,155,019,000/1,510,781.24
  6. Step 6: Final answer
    x = 1,195,510.62

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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.