Home / 961,378.30-1,442,210.92-354,120.34

Finding the Fourth Proportional to 961,378.30, 1,442,210.92 and 354,120.34

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Solution

The fourth proportional to 961,378.30, 1,442,210.92 and 354,120.34 is: 531,233.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,378.30 : 1,442,210.92 = 354,120.34 : x
  2. Step 2: Convert to fraction form
    961,378.30/1,442,210.92 = 354,120.34/x
  3. Step 3: Cross multiply
    961,378.30x = 1,442,210.92 × 354,120.34
  4. Step 4: Simplify right side
    961,378.30x = 510,716,221,342.11
  5. Step 5: Solve for x
    x = 510,716,221,342.11/961,378.30
  6. Step 6: Final answer
    x = 531,233.36

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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.