Home / 1,042,972.80-1,564,977.60-411,907.20

Finding the Fourth Proportional to 1,042,972.80, 1,564,977.60 and 411,907.20

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Solution

The fourth proportional to 1,042,972.80, 1,564,977.60 and 411,907.20 is: 618,065.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,972.80 : 1,564,977.60 = 411,907.20 : x
  2. Step 2: Convert to fraction form
    1,042,972.80/1,564,977.60 = 411,907.20/x
  3. Step 3: Cross multiply
    1,042,972.80x = 1,564,977.60 × 411,907.20
  4. Step 4: Simplify right side
    1,042,972.80x = 644,625,541,278.72
  5. Step 5: Solve for x
    x = 644,625,541,278.72/1,042,972.80
  6. Step 6: Final answer
    x = 618,065.53

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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.