Home / 772,314.57-1,158,425.69-458,766.81

Finding the Fourth Proportional to 772,314.57, 1,158,425.69 and 458,766.81

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Solution

The fourth proportional to 772,314.57, 1,158,425.69 and 458,766.81 is: 688,122.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,314.57 : 1,158,425.69 = 458,766.81 : x
  2. Step 2: Convert to fraction form
    772,314.57/1,158,425.69 = 458,766.81/x
  3. Step 3: Cross multiply
    772,314.57x = 1,158,425.69 × 458,766.81
  4. Step 4: Simplify right side
    772,314.57x = 531,447,256,129.52
  5. Step 5: Solve for x
    x = 531,447,256,129.52/772,314.57
  6. Step 6: Final answer
    x = 688,122.79

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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.