Home / 979,515.72-1,351,657.59-549,712.83

Finding the Fourth Proportional to 979,515.72, 1,351,657.59 and 549,712.83

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Solution

The fourth proportional to 979,515.72, 1,351,657.59 and 549,712.83 is: 758,562.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,515.72 : 1,351,657.59 = 549,712.83 : x
  2. Step 2: Convert to fraction form
    979,515.72/1,351,657.59 = 549,712.83/x
  3. Step 3: Cross multiply
    979,515.72x = 1,351,657.59 × 549,712.83
  4. Step 4: Simplify right side
    979,515.72x = 743,023,518,989.88
  5. Step 5: Solve for x
    x = 743,023,518,989.88/979,515.72
  6. Step 6: Final answer
    x = 758,562.12

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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.