Home / 467,977.71-645,809.28-253,117.79

Finding the Fourth Proportional to 467,977.71, 645,809.28 and 253,117.79

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Solution

The fourth proportional to 467,977.71, 645,809.28 and 253,117.79 is: 349,302.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,977.71 : 645,809.28 = 253,117.79 : x
  2. Step 2: Convert to fraction form
    467,977.71/645,809.28 = 253,117.79/x
  3. Step 3: Cross multiply
    467,977.71x = 645,809.28 × 253,117.79
  4. Step 4: Simplify right side
    467,977.71x = 163,465,814,486.05
  5. Step 5: Solve for x
    x = 163,465,814,486.05/467,977.71
  6. Step 6: Final answer
    x = 349,302.57

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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.