Home / 931,979.90-1,397,967.50-258,058.96

Finding the Fourth Proportional to 931,979.90, 1,397,967.50 and 258,058.96

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Solution

The fourth proportional to 931,979.90, 1,397,967.50 and 258,058.96 is: 387,087.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,979.90 : 1,397,967.50 = 258,058.96 : x
  2. Step 2: Convert to fraction form
    931,979.90/1,397,967.50 = 258,058.96/x
  3. Step 3: Cross multiply
    931,979.90x = 1,397,967.50 × 258,058.96
  4. Step 4: Simplify right side
    931,979.90x = 360,758,036,314.03
  5. Step 5: Solve for x
    x = 360,758,036,314.03/931,979.90
  6. Step 6: Final answer
    x = 387,087.79

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1.5x scale

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.