Home / 993,325.20-1,489,987.80-780,748.80

Finding the Fourth Proportional to 993,325.20, 1,489,987.80 and 780,748.80

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Solution

The fourth proportional to 993,325.20, 1,489,987.80 and 780,748.80 is: 1,171,123.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,325.20 : 1,489,987.80 = 780,748.80 : x
  2. Step 2: Convert to fraction form
    993,325.20/1,489,987.80 = 780,748.80/x
  3. Step 3: Cross multiply
    993,325.20x = 1,489,987.80 × 780,748.80
  4. Step 4: Simplify right side
    993,325.20x = 1,163,306,186,864.64
  5. Step 5: Solve for x
    x = 1,163,306,186,864.64/993,325.20
  6. Step 6: Final answer
    x = 1,171,123.20

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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.