Home / 841,795.30-1,161,389.37-479,128.42

Finding the Fourth Proportional to 841,795.30, 1,161,389.37 and 479,128.42

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Solution

The fourth proportional to 841,795.30, 1,161,389.37 and 479,128.42 is: 661,033.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,795.30 : 1,161,389.37 = 479,128.42 : x
  2. Step 2: Convert to fraction form
    841,795.30/1,161,389.37 = 479,128.42/x
  3. Step 3: Cross multiply
    841,795.30x = 1,161,389.37 × 479,128.42
  4. Step 4: Simplify right side
    841,795.30x = 556,454,653,852.90
  5. Step 5: Solve for x
    x = 556,454,653,852.90/841,795.30
  6. Step 6: Final answer
    x = 661,033.22

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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.