Home / 841,128.29-1,160,601.80-478,530.98

Finding the Fourth Proportional to 841,128.29, 1,160,601.80 and 478,530.98

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Solution

The fourth proportional to 841,128.29, 1,160,601.80 and 478,530.98 is: 660,284.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,128.29 : 1,160,601.80 = 478,530.98 : x
  2. Step 2: Convert to fraction form
    841,128.29/1,160,601.80 = 478,530.98/x
  3. Step 3: Cross multiply
    841,128.29x = 1,160,601.80 × 478,530.98
  4. Step 4: Simplify right side
    841,128.29x = 555,383,914,351.11
  5. Step 5: Solve for x
    x = 555,383,914,351.11/841,128.29
  6. Step 6: Final answer
    x = 660,284.43

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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.