Home / 668,854.80-1,003,610.24-313,897.68

Finding the Fourth Proportional to 668,854.80, 1,003,610.24 and 313,897.68

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Solution

The fourth proportional to 668,854.80, 1,003,610.24 and 313,897.68 is: 471,000.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,854.80 : 1,003,610.24 = 313,897.68 : x
  2. Step 2: Convert to fraction form
    668,854.80/1,003,610.24 = 313,897.68/x
  3. Step 3: Cross multiply
    668,854.80x = 1,003,610.24 × 313,897.68
  4. Step 4: Simplify right side
    668,854.80x = 315,030,925,960.24
  5. Step 5: Solve for x
    x = 315,030,925,960.24/668,854.80
  6. Step 6: Final answer
    x = 471,000.47

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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.