Home / 1,009,721.43-1,514,188.49-378,290.79

Finding the Fourth Proportional to 1,009,721.43, 1,514,188.49 and 378,290.79

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Solution

The fourth proportional to 1,009,721.43, 1,514,188.49 and 378,290.79 is: 567,288.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,721.43 : 1,514,188.49 = 378,290.79 : x
  2. Step 2: Convert to fraction form
    1,009,721.43/1,514,188.49 = 378,290.79/x
  3. Step 3: Cross multiply
    1,009,721.43x = 1,514,188.49 × 378,290.79
  4. Step 4: Simplify right side
    1,009,721.43x = 572,803,558,199.55
  5. Step 5: Solve for x
    x = 572,803,558,199.55/1,009,721.43
  6. Step 6: Final answer
    x = 567,288.70

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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.