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Finding the Fourth Proportional to 549,045.77, 757,690.90 and 316,344.10

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Solution

The fourth proportional to 549,045.77, 757,690.90 and 316,344.10 is: 436,559.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,045.77 : 757,690.90 = 316,344.10 : x
  2. Step 2: Convert to fraction form
    549,045.77/757,690.90 = 316,344.10/x
  3. Step 3: Cross multiply
    549,045.77x = 757,690.90 × 316,344.10
  4. Step 4: Simplify right side
    549,045.77x = 239,691,042,362.74
  5. Step 5: Solve for x
    x = 239,691,042,362.74/549,045.77
  6. Step 6: Final answer
    x = 436,559.31

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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.