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Finding the Fourth Proportional to 486,859.04, 730,327.08 and 171,386.72

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Solution

The fourth proportional to 486,859.04, 730,327.08 and 171,386.72 is: 257,093.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,859.04 : 730,327.08 = 171,386.72 : x
  2. Step 2: Convert to fraction form
    486,859.04/730,327.08 = 171,386.72/x
  3. Step 3: Cross multiply
    486,859.04x = 730,327.08 × 171,386.72
  4. Step 4: Simplify right side
    486,859.04x = 125,168,362,768.38
  5. Step 5: Solve for x
    x = 125,168,362,768.38/486,859.04
  6. Step 6: Final answer
    x = 257,093.64

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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.