Home / 668,830.80-1,003,246.20-429,682.35

Finding the Fourth Proportional to 668,830.80, 1,003,246.20 and 429,682.35

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Solution

The fourth proportional to 668,830.80, 1,003,246.20 and 429,682.35 is: 644,523.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,830.80 : 1,003,246.20 = 429,682.35 : x
  2. Step 2: Convert to fraction form
    668,830.80/1,003,246.20 = 429,682.35/x
  3. Step 3: Cross multiply
    668,830.80x = 1,003,246.20 × 429,682.35
  4. Step 4: Simplify right side
    668,830.80x = 431,077,184,844.57
  5. Step 5: Solve for x
    x = 431,077,184,844.57/668,830.80
  6. Step 6: Final answer
    x = 644,523.53

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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.