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Finding the Fourth Proportional to 484,669.96, 668,907.36 and 278,018.92

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Solution

The fourth proportional to 484,669.96, 668,907.36 and 278,018.92 is: 383,702.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,669.96 : 668,907.36 = 278,018.92 : x
  2. Step 2: Convert to fraction form
    484,669.96/668,907.36 = 278,018.92/x
  3. Step 3: Cross multiply
    484,669.96x = 668,907.36 × 278,018.92
  4. Step 4: Simplify right side
    484,669.96x = 185,968,901,807.25
  5. Step 5: Solve for x
    x = 185,968,901,807.25/484,669.96
  6. Step 6: Final answer
    x = 383,702.14

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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.