Home / 912,805.40-1,369,208.10-898,808.60

Finding the Fourth Proportional to 912,805.40, 1,369,208.10 and 898,808.60

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Solution

The fourth proportional to 912,805.40, 1,369,208.10 and 898,808.60 is: 1,348,212.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,805.40 : 1,369,208.10 = 898,808.60 : x
  2. Step 2: Convert to fraction form
    912,805.40/1,369,208.10 = 898,808.60/x
  3. Step 3: Cross multiply
    912,805.40x = 1,369,208.10 × 898,808.60
  4. Step 4: Simplify right side
    912,805.40x = 1,230,656,015,469.66
  5. Step 5: Solve for x
    x = 1,230,656,015,469.66/912,805.40
  6. Step 6: Final answer
    x = 1,348,212.90

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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.