Home / 1,132,411.92-1,698,911.84-422,445.28

Finding the Fourth Proportional to 1,132,411.92, 1,698,911.84 and 422,445.28

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Solution

The fourth proportional to 1,132,411.92, 1,698,911.84 and 422,445.28 is: 633,777.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132,411.92 : 1,698,911.84 = 422,445.28 : x
  2. Step 2: Convert to fraction form
    1,132,411.92/1,698,911.84 = 422,445.28/x
  3. Step 3: Cross multiply
    1,132,411.92x = 1,698,911.84 × 422,445.28
  4. Step 4: Simplify right side
    1,132,411.92x = 717,697,287,944.12
  5. Step 5: Solve for x
    x = 717,697,287,944.12/1,132,411.92
  6. Step 6: Final answer
    x = 633,777.58

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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.