Home / 690,189.66-1,035,440.01-210,459.87

Finding the Fourth Proportional to 690,189.66, 1,035,440.01 and 210,459.87

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Solution

The fourth proportional to 690,189.66, 1,035,440.01 and 210,459.87 is: 315,737.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,189.66 : 1,035,440.01 = 210,459.87 : x
  2. Step 2: Convert to fraction form
    690,189.66/1,035,440.01 = 210,459.87/x
  3. Step 3: Cross multiply
    690,189.66x = 1,035,440.01 × 210,459.87
  4. Step 4: Simplify right side
    690,189.66x = 217,918,569,897.40
  5. Step 5: Solve for x
    x = 217,918,569,897.40/690,189.66
  6. Step 6: Final answer
    x = 315,737.23

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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.