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Finding the Fourth Proportional to 560,803.60, 773,905.03 and 306,154.79

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Solution

The fourth proportional to 560,803.60, 773,905.03 and 306,154.79 is: 422,491.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,803.60 : 773,905.03 = 306,154.79 : x
  2. Step 2: Convert to fraction form
    560,803.60/773,905.03 = 306,154.79/x
  3. Step 3: Cross multiply
    560,803.60x = 773,905.03 × 306,154.79
  4. Step 4: Simplify right side
    560,803.60x = 236,934,731,928.95
  5. Step 5: Solve for x
    x = 236,934,731,928.95/560,803.60
  6. Step 6: Final answer
    x = 422,491.46

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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.