Home / 907,989.40-1,361,984.10-810,011.80

Finding the Fourth Proportional to 907,989.40, 1,361,984.10 and 810,011.80

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Solution

The fourth proportional to 907,989.40, 1,361,984.10 and 810,011.80 is: 1,215,017.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,989.40 : 1,361,984.10 = 810,011.80 : x
  2. Step 2: Convert to fraction form
    907,989.40/1,361,984.10 = 810,011.80/x
  3. Step 3: Cross multiply
    907,989.40x = 1,361,984.10 × 810,011.80
  4. Step 4: Simplify right side
    907,989.40x = 1,103,223,192,412.38
  5. Step 5: Solve for x
    x = 1,103,223,192,412.38/907,989.40
  6. Step 6: Final answer
    x = 1,215,017.70

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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.