Home / 698,306.31-1,047,438.68-192,897.60

Finding the Fourth Proportional to 698,306.31, 1,047,438.68 and 192,897.60

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Solution

The fourth proportional to 698,306.31, 1,047,438.68 and 192,897.60 is: 289,340.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,306.31 : 1,047,438.68 = 192,897.60 : x
  2. Step 2: Convert to fraction form
    698,306.31/1,047,438.68 = 192,897.60/x
  3. Step 3: Cross multiply
    698,306.31x = 1,047,438.68 × 192,897.60
  4. Step 4: Simplify right side
    698,306.31x = 202,048,402,281.98
  5. Step 5: Solve for x
    x = 202,048,402,281.98/698,306.31
  6. Step 6: Final answer
    x = 289,340.65

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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.