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Finding the Fourth Proportional to 554,204.71, 764,802.07 and 299,555.90

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Solution

The fourth proportional to 554,204.71, 764,802.07 and 299,555.90 is: 413,386.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,204.71 : 764,802.07 = 299,555.90 : x
  2. Step 2: Convert to fraction form
    554,204.71/764,802.07 = 299,555.90/x
  3. Step 3: Cross multiply
    554,204.71x = 764,802.07 × 299,555.90
  4. Step 4: Simplify right side
    554,204.71x = 229,100,972,400.71
  5. Step 5: Solve for x
    x = 229,100,972,400.71/554,204.71
  6. Step 6: Final answer
    x = 413,386.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.