Home / 380,560.31-524,561.13-258,012.98

Finding the Fourth Proportional to 380,560.31, 524,561.13 and 258,012.98

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Solution

The fourth proportional to 380,560.31, 524,561.13 and 258,012.98 is: 355,642.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,560.31 : 524,561.13 = 258,012.98 : x
  2. Step 2: Convert to fraction form
    380,560.31/524,561.13 = 258,012.98/x
  3. Step 3: Cross multiply
    380,560.31x = 524,561.13 × 258,012.98
  4. Step 4: Simplify right side
    380,560.31x = 135,343,577,720.66
  5. Step 5: Solve for x
    x = 135,343,577,720.66/380,560.31
  6. Step 6: Final answer
    x = 355,642.92

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1.5x scale

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.