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Finding the Fourth Proportional to 549,665.85, 758,520.53 and 304,640.17

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Solution

The fourth proportional to 549,665.85, 758,520.53 and 304,640.17 is: 420,393.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,665.85 : 758,520.53 = 304,640.17 : x
  2. Step 2: Convert to fraction form
    549,665.85/758,520.53 = 304,640.17/x
  3. Step 3: Cross multiply
    549,665.85x = 758,520.53 × 304,640.17
  4. Step 4: Simplify right side
    549,665.85x = 231,075,823,207.69
  5. Step 5: Solve for x
    x = 231,075,823,207.69/549,665.85
  6. Step 6: Final answer
    x = 420,393.27

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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.