Home / 403,492.91-556,821.88-231,417.52

Finding the Fourth Proportional to 403,492.91, 556,821.88 and 231,417.52

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Solution

The fourth proportional to 403,492.91, 556,821.88 and 231,417.52 is: 319,357.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,492.91 : 556,821.88 = 231,417.52 : x
  2. Step 2: Convert to fraction form
    403,492.91/556,821.88 = 231,417.52/x
  3. Step 3: Cross multiply
    403,492.91x = 556,821.88 × 231,417.52
  4. Step 4: Simplify right side
    403,492.91x = 128,858,336,580.74
  5. Step 5: Solve for x
    x = 128,858,336,580.74/403,492.91
  6. Step 6: Final answer
    x = 319,357.13

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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.