Home / 388,975.19-583,506.57-122,656.91

Finding the Fourth Proportional to 388,975.19, 583,506.57 and 122,656.91

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Solution

The fourth proportional to 388,975.19, 583,506.57 and 122,656.91 is: 183,999.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,975.19 : 583,506.57 = 122,656.91 : x
  2. Step 2: Convert to fraction form
    388,975.19/583,506.57 = 122,656.91/x
  3. Step 3: Cross multiply
    388,975.19x = 583,506.57 × 122,656.91
  4. Step 4: Simplify right side
    388,975.19x = 71,571,112,840.90
  5. Step 5: Solve for x
    x = 71,571,112,840.90/388,975.19
  6. Step 6: Final answer
    x = 183,999.17

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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.