Home / 1,425,391.77-1,967,041.17-780,835.20

Finding the Fourth Proportional to 1,425,391.77, 1,967,041.17 and 780,835.20

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Solution

The fourth proportional to 1,425,391.77, 1,967,041.17 and 780,835.20 is: 1,077,552.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,391.77 : 1,967,041.17 = 780,835.20 : x
  2. Step 2: Convert to fraction form
    1,425,391.77/1,967,041.17 = 780,835.20/x
  3. Step 3: Cross multiply
    1,425,391.77x = 1,967,041.17 × 780,835.20
  4. Step 4: Simplify right side
    1,425,391.77x = 1,535,934,985,385.18
  5. Step 5: Solve for x
    x = 1,535,934,985,385.18/1,425,391.77
  6. Step 6: Final answer
    x = 1,077,552.86

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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.