Home / 388,721.60-581,696.69-268,802.93

Finding the Fourth Proportional to 388,721.60, 581,696.69 and 268,802.93

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Solution

The fourth proportional to 388,721.60, 581,696.69 and 268,802.93 is: 402,246.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,721.60 : 581,696.69 = 268,802.93 : x
  2. Step 2: Convert to fraction form
    388,721.60/581,696.69 = 268,802.93/x
  3. Step 3: Cross multiply
    388,721.60x = 581,696.69 × 268,802.93
  4. Step 4: Simplify right side
    388,721.60x = 156,361,770,390.80
  5. Step 5: Solve for x
    x = 156,361,770,390.80/388,721.60
  6. Step 6: Final answer
    x = 402,246.16

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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.