Home / 423,935.24-634,518.30-311,585.72

Finding the Fourth Proportional to 423,935.24, 634,518.30 and 311,585.72

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Solution

The fourth proportional to 423,935.24, 634,518.30 and 311,585.72 is: 466,360.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,935.24 : 634,518.30 = 311,585.72 : x
  2. Step 2: Convert to fraction form
    423,935.24/634,518.30 = 311,585.72/x
  3. Step 3: Cross multiply
    423,935.24x = 634,518.30 × 311,585.72
  4. Step 4: Simplify right side
    423,935.24x = 197,706,841,358.68
  5. Step 5: Solve for x
    x = 197,706,841,358.68/423,935.24
  6. Step 6: Final answer
    x = 466,360.95

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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.