Home / 698,427.20-1,046,949.60-343,150.40

Finding the Fourth Proportional to 698,427.20, 1,046,949.60 and 343,150.40

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Solution

The fourth proportional to 698,427.20, 1,046,949.60 and 343,150.40 is: 514,386.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,427.20 : 1,046,949.60 = 343,150.40 : x
  2. Step 2: Convert to fraction form
    698,427.20/1,046,949.60 = 343,150.40/x
  3. Step 3: Cross multiply
    698,427.20x = 1,046,949.60 × 343,150.40
  4. Step 4: Simplify right side
    698,427.20x = 359,261,174,019.84
  5. Step 5: Solve for x
    x = 359,261,174,019.84/698,427.20
  6. Step 6: Final answer
    x = 514,386.00

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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.