Home / 806,023.40-1,209,812.70-407,114.60

Finding the Fourth Proportional to 806,023.40, 1,209,812.70 and 407,114.60

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Solution

The fourth proportional to 806,023.40, 1,209,812.70 and 407,114.60 is: 611,064.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,023.40 : 1,209,812.70 = 407,114.60 : x
  2. Step 2: Convert to fraction form
    806,023.40/1,209,812.70 = 407,114.60/x
  3. Step 3: Cross multiply
    806,023.40x = 1,209,812.70 × 407,114.60
  4. Step 4: Simplify right side
    806,023.40x = 492,532,413,435.42
  5. Step 5: Solve for x
    x = 492,532,413,435.42/806,023.40
  6. Step 6: Final answer
    x = 611,064.66

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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.