Home / 690,119.24-1,035,390.13-353,398.30

Finding the Fourth Proportional to 690,119.24, 1,035,390.13 and 353,398.30

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Solution

The fourth proportional to 690,119.24, 1,035,390.13 and 353,398.30 is: 530,205.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,119.24 : 1,035,390.13 = 353,398.30 : x
  2. Step 2: Convert to fraction form
    690,119.24/1,035,390.13 = 353,398.30/x
  3. Step 3: Cross multiply
    690,119.24x = 1,035,390.13 × 353,398.30
  4. Step 4: Simplify right side
    690,119.24x = 365,905,110,011.79
  5. Step 5: Solve for x
    x = 365,905,110,011.79/690,119.24
  6. Step 6: Final answer
    x = 530,205.64

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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.