Home / 916,649.50-1,375,011.51-436,630.54

Finding the Fourth Proportional to 916,649.50, 1,375,011.51 and 436,630.54

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Solution

The fourth proportional to 916,649.50, 1,375,011.51 and 436,630.54 is: 654,963.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,649.50 : 1,375,011.51 = 436,630.54 : x
  2. Step 2: Convert to fraction form
    916,649.50/1,375,011.51 = 436,630.54/x
  3. Step 3: Cross multiply
    916,649.50x = 1,375,011.51 × 436,630.54
  4. Step 4: Simplify right side
    916,649.50x = 600,372,018,117.52
  5. Step 5: Solve for x
    x = 600,372,018,117.52/916,649.50
  6. Step 6: Final answer
    x = 654,963.56

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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.