Home / 486,840.57-730,252.95-187,386.20

Finding the Fourth Proportional to 486,840.57, 730,252.95 and 187,386.20

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Solution

The fourth proportional to 486,840.57, 730,252.95 and 187,386.20 is: 281,076.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,840.57 : 730,252.95 = 187,386.20 : x
  2. Step 2: Convert to fraction form
    486,840.57/730,252.95 = 187,386.20/x
  3. Step 3: Cross multiply
    486,840.57x = 730,252.95 × 187,386.20
  4. Step 4: Simplify right side
    486,840.57x = 136,839,325,339.29
  5. Step 5: Solve for x
    x = 136,839,325,339.29/486,840.57
  6. Step 6: Final answer
    x = 281,076.26

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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.