Home / 1,128,913.48-1,557,900.57-619,648.66

Finding the Fourth Proportional to 1,128,913.48, 1,557,900.57 and 619,648.66

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Solution

The fourth proportional to 1,128,913.48, 1,557,900.57 and 619,648.66 is: 855,115.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,913.48 : 1,557,900.57 = 619,648.66 : x
  2. Step 2: Convert to fraction form
    1,128,913.48/1,557,900.57 = 619,648.66/x
  3. Step 3: Cross multiply
    1,128,913.48x = 1,557,900.57 × 619,648.66
  4. Step 4: Simplify right side
    1,128,913.48x = 965,351,000,613.74
  5. Step 5: Solve for x
    x = 965,351,000,613.74/1,128,913.48
  6. Step 6: Final answer
    x = 855,115.13

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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.