Home / 386,506.16-579,826.20-130,314.32

Finding the Fourth Proportional to 386,506.16, 579,826.20 and 130,314.32

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Solution

The fourth proportional to 386,506.16, 579,826.20 and 130,314.32 is: 195,494.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,506.16 : 579,826.20 = 130,314.32 : x
  2. Step 2: Convert to fraction form
    386,506.16/579,826.20 = 130,314.32/x
  3. Step 3: Cross multiply
    386,506.16x = 579,826.20 × 130,314.32
  4. Step 4: Simplify right side
    386,506.16x = 75,559,656,971.18
  5. Step 5: Solve for x
    x = 75,559,656,971.18/386,506.16
  6. Step 6: Final answer
    x = 195,494.06

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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.