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Finding the Fourth Proportional to 578,817.71, 798,329.31 and 507,073.22

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Solution

The fourth proportional to 578,817.71, 798,329.31 and 507,073.22 is: 699,376.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,817.71 : 798,329.31 = 507,073.22 : x
  2. Step 2: Convert to fraction form
    578,817.71/798,329.31 = 507,073.22/x
  3. Step 3: Cross multiply
    578,817.71x = 798,329.31 × 507,073.22
  4. Step 4: Simplify right side
    578,817.71x = 404,811,413,842.08
  5. Step 5: Solve for x
    x = 404,811,413,842.08/578,817.71
  6. Step 6: Final answer
    x = 699,376.34

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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.