Home / 979,515.42-1,351,657.15-549,712.51

Finding the Fourth Proportional to 979,515.42, 1,351,657.15 and 549,712.51

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Solution

The fourth proportional to 979,515.42, 1,351,657.15 and 549,712.51 is: 758,561.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,515.42 : 1,351,657.15 = 549,712.51 : x
  2. Step 2: Convert to fraction form
    979,515.42/1,351,657.15 = 549,712.51/x
  3. Step 3: Cross multiply
    979,515.42x = 1,351,657.15 × 549,712.51
  4. Step 4: Simplify right side
    979,515.42x = 743,022,844,585.95
  5. Step 5: Solve for x
    x = 743,022,844,585.95/979,515.42
  6. Step 6: Final answer
    x = 758,561.66

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Double scale
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1.5x scale

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.