Home / 1,312,655.72-1,811,454.12-731,871.95

Finding the Fourth Proportional to 1,312,655.72, 1,811,454.12 and 731,871.95

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Solution

The fourth proportional to 1,312,655.72, 1,811,454.12 and 731,871.95 is: 1,009,977.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,655.72 : 1,811,454.12 = 731,871.95 : x
  2. Step 2: Convert to fraction form
    1,312,655.72/1,811,454.12 = 731,871.95/x
  3. Step 3: Cross multiply
    1,312,655.72x = 1,811,454.12 × 731,871.95
  4. Step 4: Simplify right side
    1,312,655.72x = 1,325,752,450,082.66
  5. Step 5: Solve for x
    x = 1,325,752,450,082.66/1,312,655.72
  6. Step 6: Final answer
    x = 1,009,977.28

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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.