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Finding the Fourth Proportional to 560,037.72, 772,999.38 and 318,461.88

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Solution

The fourth proportional to 560,037.72, 772,999.38 and 318,461.88 is: 439,561.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,037.72 : 772,999.38 = 318,461.88 : x
  2. Step 2: Convert to fraction form
    560,037.72/772,999.38 = 318,461.88/x
  3. Step 3: Cross multiply
    560,037.72x = 772,999.38 × 318,461.88
  4. Step 4: Simplify right side
    560,037.72x = 246,170,835,793.63
  5. Step 5: Solve for x
    x = 246,170,835,793.63/560,037.72
  6. Step 6: Final answer
    x = 439,561.17

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.