Home / 1,290,107.60-1,934,470.20-541,307.60

Finding the Fourth Proportional to 1,290,107.60, 1,934,470.20 and 541,307.60

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Solution

The fourth proportional to 1,290,107.60, 1,934,470.20 and 541,307.60 is: 811,671.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,107.60 : 1,934,470.20 = 541,307.60 : x
  2. Step 2: Convert to fraction form
    1,290,107.60/1,934,470.20 = 541,307.60/x
  3. Step 3: Cross multiply
    1,290,107.60x = 1,934,470.20 × 541,307.60
  4. Step 4: Simplify right side
    1,290,107.60x = 1,047,143,421,233.52
  5. Step 5: Solve for x
    x = 1,047,143,421,233.52/1,290,107.60
  6. Step 6: Final answer
    x = 811,671.38

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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.