Home / 1,425,131.18-1,966,712.86-813,271.76

Finding the Fourth Proportional to 1,425,131.18, 1,966,712.86 and 813,271.76

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Solution

The fourth proportional to 1,425,131.18, 1,966,712.86 and 813,271.76 is: 1,122,333.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,131.18 : 1,966,712.86 = 813,271.76 : x
  2. Step 2: Convert to fraction form
    1,425,131.18/1,966,712.86 = 813,271.76/x
  3. Step 3: Cross multiply
    1,425,131.18x = 1,966,712.86 × 813,271.76
  4. Step 4: Simplify right side
    1,425,131.18x = 1,599,472,029,066.83
  5. Step 5: Solve for x
    x = 1,599,472,029,066.83/1,425,131.18
  6. Step 6: Final answer
    x = 1,122,333.19

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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.