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Finding the Fourth Proportional to 404,374.40, 605,363.52 and 299,663.36

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Solution

The fourth proportional to 404,374.40, 605,363.52 and 299,663.36 is: 448,607.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,374.40 : 605,363.52 = 299,663.36 : x
  2. Step 2: Convert to fraction form
    404,374.40/605,363.52 = 299,663.36/x
  3. Step 3: Cross multiply
    404,374.40x = 605,363.52 × 299,663.36
  4. Step 4: Simplify right side
    404,374.40x = 181,405,266,424.63
  5. Step 5: Solve for x
    x = 181,405,266,424.63/404,374.40
  6. Step 6: Final answer
    x = 448,607.20

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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.