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Finding the Fourth Proportional to 484,577.87, 668,603.07 and 407,347.15

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Solution

The fourth proportional to 484,577.87, 668,603.07 and 407,347.15 is: 562,042.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,577.87 : 668,603.07 = 407,347.15 : x
  2. Step 2: Convert to fraction form
    484,577.87/668,603.07 = 407,347.15/x
  3. Step 3: Cross multiply
    484,577.87x = 668,603.07 × 407,347.15
  4. Step 4: Simplify right side
    484,577.87x = 272,353,555,045.75
  5. Step 5: Solve for x
    x = 272,353,555,045.75/484,577.87
  6. Step 6: Final answer
    x = 562,042.91

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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.