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Finding the Fourth Proportional to 523,478.76, 722,216.68 and 342,296.72

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Solution

The fourth proportional to 523,478.76, 722,216.68 and 342,296.72 is: 472,249.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,478.76 : 722,216.68 = 342,296.72 : x
  2. Step 2: Convert to fraction form
    523,478.76/722,216.68 = 342,296.72/x
  3. Step 3: Cross multiply
    523,478.76x = 722,216.68 × 342,296.72
  4. Step 4: Simplify right side
    523,478.76x = 247,212,400,693.29
  5. Step 5: Solve for x
    x = 247,212,400,693.29/523,478.76
  6. Step 6: Final answer
    x = 472,249.15

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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.