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Finding the Fourth Proportional to 560,520.61, 773,534.78 and 305,888.20

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Solution

The fourth proportional to 560,520.61, 773,534.78 and 305,888.20 is: 422,134.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,520.61 : 773,534.78 = 305,888.20 : x
  2. Step 2: Convert to fraction form
    560,520.61/773,534.78 = 305,888.20/x
  3. Step 3: Cross multiply
    560,520.61x = 773,534.78 × 305,888.20
  4. Step 4: Simplify right side
    560,520.61x = 236,615,160,322.48
  5. Step 5: Solve for x
    x = 236,615,160,322.48/560,520.61
  6. Step 6: Final answer
    x = 422,134.63

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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.