Home / 690,207.52-1,035,413.28-353,438.56

Finding the Fourth Proportional to 690,207.52, 1,035,413.28 and 353,438.56

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Solution

The fourth proportional to 690,207.52, 1,035,413.28 and 353,438.56 is: 530,210.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,207.52 : 1,035,413.28 = 353,438.56 : x
  2. Step 2: Convert to fraction form
    690,207.52/1,035,413.28 = 353,438.56/x
  3. Step 3: Cross multiply
    690,207.52x = 1,035,413.28 × 353,438.56
  4. Step 4: Simplify right side
    690,207.52x = 365,954,978,688.08
  5. Step 5: Solve for x
    x = 365,954,978,688.08/690,207.52
  6. Step 6: Final answer
    x = 530,210.07

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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.