Home / 500,942.18-690,897.12-440,383.34

Finding the Fourth Proportional to 500,942.18, 690,897.12 and 440,383.34

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Solution

The fourth proportional to 500,942.18, 690,897.12 and 440,383.34 is: 607,374.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,942.18 : 690,897.12 = 440,383.34 : x
  2. Step 2: Convert to fraction form
    500,942.18/690,897.12 = 440,383.34/x
  3. Step 3: Cross multiply
    500,942.18x = 690,897.12 × 440,383.34
  4. Step 4: Simplify right side
    500,942.18x = 304,259,581,301.98
  5. Step 5: Solve for x
    x = 304,259,581,301.98/500,942.18
  6. Step 6: Final answer
    x = 607,374.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.