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Finding the Fourth Proportional to 615,655.40, 849,539.72 and 357,481.88

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Solution

The fourth proportional to 615,655.40, 849,539.72 and 357,481.88 is: 493,287.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,655.40 : 849,539.72 = 357,481.88 : x
  2. Step 2: Convert to fraction form
    615,655.40/849,539.72 = 357,481.88/x
  3. Step 3: Cross multiply
    615,655.40x = 849,539.72 × 357,481.88
  4. Step 4: Simplify right side
    615,655.40x = 303,695,056,240.27
  5. Step 5: Solve for x
    x = 303,695,056,240.27/615,655.40
  6. Step 6: Final answer
    x = 493,287.41

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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.