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Finding the Fourth Proportional to 549,010.80, 757,599.72 and 307,252.56

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Solution

The fourth proportional to 549,010.80, 757,599.72 and 307,252.56 is: 423,988.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,010.80 : 757,599.72 = 307,252.56 : x
  2. Step 2: Convert to fraction form
    549,010.80/757,599.72 = 307,252.56/x
  3. Step 3: Cross multiply
    549,010.80x = 757,599.72 × 307,252.56
  4. Step 4: Simplify right side
    549,010.80x = 232,774,453,425.28
  5. Step 5: Solve for x
    x = 232,774,453,425.28/549,010.80
  6. Step 6: Final answer
    x = 423,988.84

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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.