Home / 690,741.22-1,036,222.59-291,440.82

Finding the Fourth Proportional to 690,741.22, 1,036,222.59 and 291,440.82

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Solution

The fourth proportional to 690,741.22, 1,036,222.59 and 291,440.82 is: 437,207.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,741.22 : 1,036,222.59 = 291,440.82 : x
  2. Step 2: Convert to fraction form
    690,741.22/1,036,222.59 = 291,440.82/x
  3. Step 3: Cross multiply
    690,741.22x = 1,036,222.59 × 291,440.82
  4. Step 4: Simplify right side
    690,741.22x = 301,997,561,332.12
  5. Step 5: Solve for x
    x = 301,997,561,332.12/690,741.22
  6. Step 6: Final answer
    x = 437,207.96

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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.