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Finding the Fourth Proportional to 575,745.49, 864,366.60 and 442,719.16

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Solution

The fourth proportional to 575,745.49, 864,366.60 and 442,719.16 is: 664,654.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,745.49 : 864,366.60 = 442,719.16 : x
  2. Step 2: Convert to fraction form
    575,745.49/864,366.60 = 442,719.16/x
  3. Step 3: Cross multiply
    575,745.49x = 864,366.60 × 442,719.16
  4. Step 4: Simplify right side
    575,745.49x = 382,671,655,084.06
  5. Step 5: Solve for x
    x = 382,671,655,084.06/575,745.49
  6. Step 6: Final answer
    x = 664,654.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.