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Finding the Fourth Proportional to 661,802.40, 992,962.80 and 241,120.80

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Solution

The fourth proportional to 661,802.40, 992,962.80 and 241,120.80 is: 361,775.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,802.40 : 992,962.80 = 241,120.80 : x
  2. Step 2: Convert to fraction form
    661,802.40/992,962.80 = 241,120.80/x
  3. Step 3: Cross multiply
    661,802.40x = 992,962.80 × 241,120.80
  4. Step 4: Simplify right side
    661,802.40x = 239,423,984,706.24
  5. Step 5: Solve for x
    x = 239,423,984,706.24/661,802.40
  6. Step 6: Final answer
    x = 361,775.64

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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.