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Finding the Fourth Proportional to 549,080.10, 758,005.71 and 345,243.15

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Solution

The fourth proportional to 549,080.10, 758,005.71 and 345,243.15 is: 476,608.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,080.10 : 758,005.71 = 345,243.15 : x
  2. Step 2: Convert to fraction form
    549,080.10/758,005.71 = 345,243.15/x
  3. Step 3: Cross multiply
    549,080.10x = 758,005.71 × 345,243.15
  4. Step 4: Simplify right side
    549,080.10x = 261,696,279,038.39
  5. Step 5: Solve for x
    x = 261,696,279,038.39/549,080.10
  6. Step 6: Final answer
    x = 476,608.57

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1.5x scale

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.