Home / 1,168,762.60-1,753,835.10-420,711.40

Finding the Fourth Proportional to 1,168,762.60, 1,753,835.10 and 420,711.40

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Solution

The fourth proportional to 1,168,762.60, 1,753,835.10 and 420,711.40 is: 631,315.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,762.60 : 1,753,835.10 = 420,711.40 : x
  2. Step 2: Convert to fraction form
    1,168,762.60/1,753,835.10 = 420,711.40/x
  3. Step 3: Cross multiply
    1,168,762.60x = 1,753,835.10 × 420,711.40
  4. Step 4: Simplify right side
    1,168,762.60x = 737,858,420,290.14
  5. Step 5: Solve for x
    x = 737,858,420,290.14/1,168,762.60
  6. Step 6: Final answer
    x = 631,315.91

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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.