Home / 922,631.64-1,273,275.90-520,215

Finding the Fourth Proportional to 922,631.64, 1,273,275.90 and 520,215

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Solution

The fourth proportional to 922,631.64, 1,273,275.90 and 520,215 is: 717,921.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,631.64 : 1,273,275.90 = 520,215 : x
  2. Step 2: Convert to fraction form
    922,631.64/1,273,275.90 = 520,215/x
  3. Step 3: Cross multiply
    922,631.64x = 1,273,275.90 × 520,215
  4. Step 4: Simplify right side
    922,631.64x = 662,377,222,318.50
  5. Step 5: Solve for x
    x = 662,377,222,318.50/922,631.64
  6. Step 6: Final answer
    x = 717,921.64

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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.