Home / 668,079.72-1,001,808.54-387,677.16

Finding the Fourth Proportional to 668,079.72, 1,001,808.54 and 387,677.16

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Solution

The fourth proportional to 668,079.72, 1,001,808.54 and 387,677.16 is: 581,335.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,079.72 : 1,001,808.54 = 387,677.16 : x
  2. Step 2: Convert to fraction form
    668,079.72/1,001,808.54 = 387,677.16/x
  3. Step 3: Cross multiply
    668,079.72x = 1,001,808.54 × 387,677.16
  4. Step 4: Simplify right side
    668,079.72x = 388,378,289,650.95
  5. Step 5: Solve for x
    x = 388,378,289,650.95/668,079.72
  6. Step 6: Final answer
    x = 581,335.25

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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.