Home / 690,965.68-1,036,587.84-291,606.88

Finding the Fourth Proportional to 690,965.68, 1,036,587.84 and 291,606.88

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Solution

The fourth proportional to 690,965.68, 1,036,587.84 and 291,606.88 is: 437,469.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,965.68 : 1,036,587.84 = 291,606.88 : x
  2. Step 2: Convert to fraction form
    690,965.68/1,036,587.84 = 291,606.88/x
  3. Step 3: Cross multiply
    690,965.68x = 1,036,587.84 × 291,606.88
  4. Step 4: Simplify right side
    690,965.68x = 302,276,145,868.34
  5. Step 5: Solve for x
    x = 302,276,145,868.34/690,965.68
  6. Step 6: Final answer
    x = 437,469.12

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1.5x scale

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.