Home / 1,398,082.43-1,929,335.30-786,235.01

Finding the Fourth Proportional to 1,398,082.43, 1,929,335.30 and 786,235.01

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Solution

The fourth proportional to 1,398,082.43, 1,929,335.30 and 786,235.01 is: 1,084,993.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,082.43 : 1,929,335.30 = 786,235.01 : x
  2. Step 2: Convert to fraction form
    1,398,082.43/1,929,335.30 = 786,235.01/x
  3. Step 3: Cross multiply
    1,398,082.43x = 1,929,335.30 × 786,235.01
  4. Step 4: Simplify right side
    1,398,082.43x = 1,516,910,952,681.95
  5. Step 5: Solve for x
    x = 1,516,910,952,681.95/1,398,082.43
  6. Step 6: Final answer
    x = 1,084,993.93

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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.