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Finding the Fourth Proportional to 484,575.87, 668,600.31 and 407,345.15

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Solution

The fourth proportional to 484,575.87, 668,600.31 and 407,345.15 is: 562,040.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,575.87 : 668,600.31 = 407,345.15 : x
  2. Step 2: Convert to fraction form
    484,575.87/668,600.31 = 407,345.15/x
  3. Step 3: Cross multiply
    484,575.87x = 668,600.31 × 407,345.15
  4. Step 4: Simplify right side
    484,575.87x = 272,351,090,224.00
  5. Step 5: Solve for x
    x = 272,351,090,224.00/484,575.87
  6. Step 6: Final answer
    x = 562,040.14

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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.