Home / 1,125,454.64-1,553,275.31-641,908.94

Finding the Fourth Proportional to 1,125,454.64, 1,553,275.31 and 641,908.94

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Solution

The fourth proportional to 1,125,454.64, 1,553,275.31 and 641,908.94 is: 885,918.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,454.64 : 1,553,275.31 = 641,908.94 : x
  2. Step 2: Convert to fraction form
    1,125,454.64/1,553,275.31 = 641,908.94/x
  3. Step 3: Cross multiply
    1,125,454.64x = 1,553,275.31 × 641,908.94
  4. Step 4: Simplify right side
    1,125,454.64x = 997,061,296,794.35
  5. Step 5: Solve for x
    x = 997,061,296,794.35/1,125,454.64
  6. Step 6: Final answer
    x = 885,918.69

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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.