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Finding the Fourth Proportional to 560,549.12, 773,560.18 and 305,905.76

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Solution

The fourth proportional to 560,549.12, 773,560.18 and 305,905.76 is: 422,151.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,549.12 : 773,560.18 = 305,905.76 : x
  2. Step 2: Convert to fraction form
    560,549.12/773,560.18 = 305,905.76/x
  3. Step 3: Cross multiply
    560,549.12x = 773,560.18 × 305,905.76
  4. Step 4: Simplify right side
    560,549.12x = 236,636,514,768.64
  5. Step 5: Solve for x
    x = 236,636,514,768.64/560,549.12
  6. Step 6: Final answer
    x = 422,151.26

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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.