Home / 1,425,129.08-1,966,709.95-813,269.66

Finding the Fourth Proportional to 1,425,129.08, 1,966,709.95 and 813,269.66

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Solution

The fourth proportional to 1,425,129.08, 1,966,709.95 and 813,269.66 is: 1,122,330.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,129.08 : 1,966,709.95 = 813,269.66 : x
  2. Step 2: Convert to fraction form
    1,425,129.08/1,966,709.95 = 813,269.66/x
  3. Step 3: Cross multiply
    1,425,129.08x = 1,966,709.95 × 813,269.66
  4. Step 4: Simplify right side
    1,425,129.08x = 1,599,465,532,355.12
  5. Step 5: Solve for x
    x = 1,599,465,532,355.12/1,425,129.08
  6. Step 6: Final answer
    x = 1,122,330.29

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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.