Home / 864,410.95-1,191,778.17-708,788.89

Finding the Fourth Proportional to 864,410.95, 1,191,778.17 and 708,788.89

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Solution

The fourth proportional to 864,410.95, 1,191,778.17 and 708,788.89 is: 977,219.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,410.95 : 1,191,778.17 = 708,788.89 : x
  2. Step 2: Convert to fraction form
    864,410.95/1,191,778.17 = 708,788.89/x
  3. Step 3: Cross multiply
    864,410.95x = 1,191,778.17 × 708,788.89
  4. Step 4: Simplify right side
    864,410.95x = 844,719,120,603.13
  5. Step 5: Solve for x
    x = 844,719,120,603.13/864,410.95
  6. Step 6: Final answer
    x = 977,219.37

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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.