Home / 740,143.10-1,021,340.46-417,885

Finding the Fourth Proportional to 740,143.10, 1,021,340.46 and 417,885

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Solution

The fourth proportional to 740,143.10, 1,021,340.46 and 417,885 is: 576,649.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,143.10 : 1,021,340.46 = 417,885 : x
  2. Step 2: Convert to fraction form
    740,143.10/1,021,340.46 = 417,885/x
  3. Step 3: Cross multiply
    740,143.10x = 1,021,340.46 × 417,885
  4. Step 4: Simplify right side
    740,143.10x = 426,802,858,127.10
  5. Step 5: Solve for x
    x = 426,802,858,127.10/740,143.10
  6. Step 6: Final answer
    x = 576,649.11

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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.