Home / 961,765.20-1,442,647.80-920,811.60

Finding the Fourth Proportional to 961,765.20, 1,442,647.80 and 920,811.60

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Solution

The fourth proportional to 961,765.20, 1,442,647.80 and 920,811.60 is: 1,381,217.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,765.20 : 1,442,647.80 = 920,811.60 : x
  2. Step 2: Convert to fraction form
    961,765.20/1,442,647.80 = 920,811.60/x
  3. Step 3: Cross multiply
    961,765.20x = 1,442,647.80 × 920,811.60
  4. Step 4: Simplify right side
    961,765.20x = 1,328,406,828,954.48
  5. Step 5: Solve for x
    x = 1,328,406,828,954.48/961,765.20
  6. Step 6: Final answer
    x = 1,381,217.40

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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.