Home / 1,227,000.80-1,840,501.20-778,228.40

Finding the Fourth Proportional to 1,227,000.80, 1,840,501.20 and 778,228.40

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Solution

The fourth proportional to 1,227,000.80, 1,840,501.20 and 778,228.40 is: 1,167,342.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,000.80 : 1,840,501.20 = 778,228.40 : x
  2. Step 2: Convert to fraction form
    1,227,000.80/1,840,501.20 = 778,228.40/x
  3. Step 3: Cross multiply
    1,227,000.80x = 1,840,501.20 × 778,228.40
  4. Step 4: Simplify right side
    1,227,000.80x = 1,432,330,304,074.08
  5. Step 5: Solve for x
    x = 1,432,330,304,074.08/1,227,000.80
  6. Step 6: Final answer
    x = 1,167,342.60

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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.