Home / 1,228,605.20-1,842,907.80-803,452.40

Finding the Fourth Proportional to 1,228,605.20, 1,842,907.80 and 803,452.40

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Solution

The fourth proportional to 1,228,605.20, 1,842,907.80 and 803,452.40 is: 1,205,178.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,605.20 : 1,842,907.80 = 803,452.40 : x
  2. Step 2: Convert to fraction form
    1,228,605.20/1,842,907.80 = 803,452.40/x
  3. Step 3: Cross multiply
    1,228,605.20x = 1,842,907.80 × 803,452.40
  4. Step 4: Simplify right side
    1,228,605.20x = 1,480,688,694,888.72
  5. Step 5: Solve for x
    x = 1,480,688,694,888.72/1,228,605.20
  6. Step 6: Final answer
    x = 1,205,178.60

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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.