Home / 698,438.95-1,046,711.11-318,889.20

Finding the Fourth Proportional to 698,438.95, 1,046,711.11 and 318,889.20

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Solution

The fourth proportional to 698,438.95, 1,046,711.11 and 318,889.20 is: 477,901.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,438.95 : 1,046,711.11 = 318,889.20 : x
  2. Step 2: Convert to fraction form
    698,438.95/1,046,711.11 = 318,889.20/x
  3. Step 3: Cross multiply
    698,438.95x = 1,046,711.11 × 318,889.20
  4. Step 4: Simplify right side
    698,438.95x = 333,784,872,224.87
  5. Step 5: Solve for x
    x = 333,784,872,224.87/698,438.95
  6. Step 6: Final answer
    x = 477,901.28

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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.