Home / 1,115,578.42-1,539,439.20-632,149.36

Finding the Fourth Proportional to 1,115,578.42, 1,539,439.20 and 632,149.36

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Solution

The fourth proportional to 1,115,578.42, 1,539,439.20 and 632,149.36 is: 872,332.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,578.42 : 1,539,439.20 = 632,149.36 : x
  2. Step 2: Convert to fraction form
    1,115,578.42/1,539,439.20 = 632,149.36/x
  3. Step 3: Cross multiply
    1,115,578.42x = 1,539,439.20 × 632,149.36
  4. Step 4: Simplify right side
    1,115,578.42x = 973,155,505,038.91
  5. Step 5: Solve for x
    x = 973,155,505,038.91/1,115,578.42
  6. Step 6: Final answer
    x = 872,332.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.