Home / 348,743.32-478,121.27-342,444.76

Finding the Fourth Proportional to 348,743.32, 478,121.27 and 342,444.76

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Solution

The fourth proportional to 348,743.32, 478,121.27 and 342,444.76 is: 469,486.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,743.32 : 478,121.27 = 342,444.76 : x
  2. Step 2: Convert to fraction form
    348,743.32/478,121.27 = 342,444.76/x
  3. Step 3: Cross multiply
    348,743.32x = 478,121.27 × 342,444.76
  4. Step 4: Simplify right side
    348,743.32x = 163,730,123,556.05
  5. Step 5: Solve for x
    x = 163,730,123,556.05/348,743.32
  6. Step 6: Final answer
    x = 469,486.05

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.