Home / 427,479.10-589,938.52-236,489.20

Finding the Fourth Proportional to 427,479.10, 589,938.52 and 236,489.20

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Solution

The fourth proportional to 427,479.10, 589,938.52 and 236,489.20 is: 326,364.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,479.10 : 589,938.52 = 236,489.20 : x
  2. Step 2: Convert to fraction form
    427,479.10/589,938.52 = 236,489.20/x
  3. Step 3: Cross multiply
    427,479.10x = 589,938.52 × 236,489.20
  4. Step 4: Simplify right side
    427,479.10x = 139,514,088,643.98
  5. Step 5: Solve for x
    x = 139,514,088,643.98/427,479.10
  6. Step 6: Final answer
    x = 326,364.70

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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.