Home / 1,095,475.20-1,643,212.80-911,155.20

Finding the Fourth Proportional to 1,095,475.20, 1,643,212.80 and 911,155.20

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Solution

The fourth proportional to 1,095,475.20, 1,643,212.80 and 911,155.20 is: 1,366,732.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,475.20 : 1,643,212.80 = 911,155.20 : x
  2. Step 2: Convert to fraction form
    1,095,475.20/1,643,212.80 = 911,155.20/x
  3. Step 3: Cross multiply
    1,095,475.20x = 1,643,212.80 × 911,155.20
  4. Step 4: Simplify right side
    1,095,475.20x = 1,497,221,887,426.56
  5. Step 5: Solve for x
    x = 1,497,221,887,426.56/1,095,475.20
  6. Step 6: Final answer
    x = 1,366,732.80

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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.