Home / 690,087.60-1,035,163.80-216,788.40

Finding the Fourth Proportional to 690,087.60, 1,035,163.80 and 216,788.40

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Solution

The fourth proportional to 690,087.60, 1,035,163.80 and 216,788.40 is: 325,192.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,087.60 : 1,035,163.80 = 216,788.40 : x
  2. Step 2: Convert to fraction form
    690,087.60/1,035,163.80 = 216,788.40/x
  3. Step 3: Cross multiply
    690,087.60x = 1,035,163.80 × 216,788.40
  4. Step 4: Simplify right side
    690,087.60x = 224,411,503,939.92
  5. Step 5: Solve for x
    x = 224,411,503,939.92/690,087.60
  6. Step 6: Final answer
    x = 325,192.78

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1.5x scale

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.