Home / 657,026.64-985,116.21-257,707.77

Finding the Fourth Proportional to 657,026.64, 985,116.21 and 257,707.77

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Solution

The fourth proportional to 657,026.64, 985,116.21 and 257,707.77 is: 386,395.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,026.64 : 985,116.21 = 257,707.77 : x
  2. Step 2: Convert to fraction form
    657,026.64/985,116.21 = 257,707.77/x
  3. Step 3: Cross multiply
    657,026.64x = 985,116.21 × 257,707.77
  4. Step 4: Simplify right side
    657,026.64x = 253,872,101,669.95
  5. Step 5: Solve for x
    x = 253,872,101,669.95/657,026.64
  6. Step 6: Final answer
    x = 386,395.45

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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.