Home / 690,117.48-1,035,280.71-216,758.34

Finding the Fourth Proportional to 690,117.48, 1,035,280.71 and 216,758.34

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Solution

The fourth proportional to 690,117.48, 1,035,280.71 and 216,758.34 is: 325,170.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,117.48 : 1,035,280.71 = 216,758.34 : x
  2. Step 2: Convert to fraction form
    690,117.48/1,035,280.71 = 216,758.34/x
  3. Step 3: Cross multiply
    690,117.48x = 1,035,280.71 × 216,758.34
  4. Step 4: Simplify right side
    690,117.48x = 224,405,728,133.62
  5. Step 5: Solve for x
    x = 224,405,728,133.62/690,117.48
  6. Step 6: Final answer
    x = 325,170.33

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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.