Home / 854,839.40-1,282,259.10-815,473.40

Finding the Fourth Proportional to 854,839.40, 1,282,259.10 and 815,473.40

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Solution

The fourth proportional to 854,839.40, 1,282,259.10 and 815,473.40 is: 1,223,210.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,839.40 : 1,282,259.10 = 815,473.40 : x
  2. Step 2: Convert to fraction form
    854,839.40/1,282,259.10 = 815,473.40/x
  3. Step 3: Cross multiply
    854,839.40x = 1,282,259.10 × 815,473.40
  4. Step 4: Simplify right side
    854,839.40x = 1,045,648,187,957.94
  5. Step 5: Solve for x
    x = 1,045,648,187,957.94/854,839.40
  6. Step 6: Final answer
    x = 1,223,210.10

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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.