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Finding the Fourth Proportional to 403,492.59, 556,808.72 and 231,439.41

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Solution

The fourth proportional to 403,492.59, 556,808.72 and 231,439.41 is: 319,380.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,492.59 : 556,808.72 = 231,439.41 : x
  2. Step 2: Convert to fraction form
    403,492.59/556,808.72 = 231,439.41/x
  3. Step 3: Cross multiply
    403,492.59x = 556,808.72 × 231,439.41
  4. Step 4: Simplify right side
    403,492.59x = 128,867,480,482.46
  5. Step 5: Solve for x
    x = 128,867,480,482.46/403,492.59
  6. Step 6: Final answer
    x = 319,380.04

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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.