Home / 698,422.20-1,046,942.10-343,145.40

Finding the Fourth Proportional to 698,422.20, 1,046,942.10 and 343,145.40

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Solution

The fourth proportional to 698,422.20, 1,046,942.10 and 343,145.40 is: 514,378.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,422.20 : 1,046,942.10 = 343,145.40 : x
  2. Step 2: Convert to fraction form
    698,422.20/1,046,942.10 = 343,145.40/x
  3. Step 3: Cross multiply
    698,422.20x = 1,046,942.10 × 343,145.40
  4. Step 4: Simplify right side
    698,422.20x = 359,253,365,681.34
  5. Step 5: Solve for x
    x = 359,253,365,681.34/698,422.20
  6. Step 6: Final answer
    x = 514,378.50

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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.