Home / 1,125,837.28-1,688,930.88-378,058.24

Finding the Fourth Proportional to 1,125,837.28, 1,688,930.88 and 378,058.24

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Solution

The fourth proportional to 1,125,837.28, 1,688,930.88 and 378,058.24 is: 567,146.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,837.28 : 1,688,930.88 = 378,058.24 : x
  2. Step 2: Convert to fraction form
    1,125,837.28/1,688,930.88 = 378,058.24/x
  3. Step 3: Cross multiply
    1,125,837.28x = 1,688,930.88 × 378,058.24
  4. Step 4: Simplify right side
    1,125,837.28x = 638,514,238,794.47
  5. Step 5: Solve for x
    x = 638,514,238,794.47/1,125,837.28
  6. Step 6: Final answer
    x = 567,146.11

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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.