Home / 668,686.50-1,003,191.81-384,558.90

Finding the Fourth Proportional to 668,686.50, 1,003,191.81 and 384,558.90

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Solution

The fourth proportional to 668,686.50, 1,003,191.81 and 384,558.90 is: 576,931.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,686.50 : 1,003,191.81 = 384,558.90 : x
  2. Step 2: Convert to fraction form
    668,686.50/1,003,191.81 = 384,558.90/x
  3. Step 3: Cross multiply
    668,686.50x = 1,003,191.81 × 384,558.90
  4. Step 4: Simplify right side
    668,686.50x = 385,786,338,942.61
  5. Step 5: Solve for x
    x = 385,786,338,942.61/668,686.50
  6. Step 6: Final answer
    x = 576,931.55

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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.