Home / 690,453.50-1,035,693.22-191,830.46

Finding the Fourth Proportional to 690,453.50, 1,035,693.22 and 191,830.46

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Solution

The fourth proportional to 690,453.50, 1,035,693.22 and 191,830.46 is: 287,749.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,453.50 : 1,035,693.22 = 191,830.46 : x
  2. Step 2: Convert to fraction form
    690,453.50/1,035,693.22 = 191,830.46/x
  3. Step 3: Cross multiply
    690,453.50x = 1,035,693.22 × 191,830.46
  4. Step 4: Simplify right side
    690,453.50x = 198,677,506,811.48
  5. Step 5: Solve for x
    x = 198,677,506,811.48/690,453.50
  6. Step 6: Final answer
    x = 287,749.29

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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.