Home / 749,689.08-1,122,745.99-478,965.56

Finding the Fourth Proportional to 749,689.08, 1,122,745.99 and 478,965.56

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Solution

The fourth proportional to 749,689.08, 1,122,745.99 and 478,965.56 is: 717,306.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,689.08 : 1,122,745.99 = 478,965.56 : x
  2. Step 2: Convert to fraction form
    749,689.08/1,122,745.99 = 478,965.56/x
  3. Step 3: Cross multiply
    749,689.08x = 1,122,745.99 × 478,965.56
  4. Step 4: Simplify right side
    749,689.08x = 537,756,664,051.10
  5. Step 5: Solve for x
    x = 537,756,664,051.10/749,689.08
  6. Step 6: Final answer
    x = 717,306.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.