Home / 657,910.16-986,862.72-258,271.28

Finding the Fourth Proportional to 657,910.16, 986,862.72 and 258,271.28

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Solution

The fourth proportional to 657,910.16, 986,862.72 and 258,271.28 is: 387,405.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,910.16 : 986,862.72 = 258,271.28 : x
  2. Step 2: Convert to fraction form
    657,910.16/986,862.72 = 258,271.28/x
  3. Step 3: Cross multiply
    657,910.16x = 986,862.72 × 258,271.28
  4. Step 4: Simplify right side
    657,910.16x = 254,878,297,878.68
  5. Step 5: Solve for x
    x = 254,878,297,878.68/657,910.16
  6. Step 6: Final answer
    x = 387,405.93

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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.