Home / 612,719.64-845,493.87-354,545.10

Finding the Fourth Proportional to 612,719.64, 845,493.87 and 354,545.10

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Solution

The fourth proportional to 612,719.64, 845,493.87 and 354,545.10 is: 489,237.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,719.64 : 845,493.87 = 354,545.10 : x
  2. Step 2: Convert to fraction form
    612,719.64/845,493.87 = 354,545.10/x
  3. Step 3: Cross multiply
    612,719.64x = 845,493.87 × 354,545.10
  4. Step 4: Simplify right side
    612,719.64x = 299,765,708,688.54
  5. Step 5: Solve for x
    x = 299,765,708,688.54/612,719.64
  6. Step 6: Final answer
    x = 489,237.96

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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.