Home / 690,391.08-1,035,727.80-291,031.92

Finding the Fourth Proportional to 690,391.08, 1,035,727.80 and 291,031.92

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Solution

The fourth proportional to 690,391.08, 1,035,727.80 and 291,031.92 is: 436,607.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,391.08 : 1,035,727.80 = 291,031.92 : x
  2. Step 2: Convert to fraction form
    690,391.08/1,035,727.80 = 291,031.92/x
  3. Step 3: Cross multiply
    690,391.08x = 1,035,727.80 × 291,031.92
  4. Step 4: Simplify right side
    690,391.08x = 301,429,850,231.38
  5. Step 5: Solve for x
    x = 301,429,850,231.38/690,391.08
  6. Step 6: Final answer
    x = 436,607.39

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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.