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Finding the Fourth Proportional to 578,035.53, 797,664.51 and 319,888.33

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Solution

The fourth proportional to 578,035.53, 797,664.51 and 319,888.33 is: 441,432.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,035.53 : 797,664.51 = 319,888.33 : x
  2. Step 2: Convert to fraction form
    578,035.53/797,664.51 = 319,888.33/x
  3. Step 3: Cross multiply
    578,035.53x = 797,664.51 × 319,888.33
  4. Step 4: Simplify right side
    578,035.53x = 255,163,569,936.01
  5. Step 5: Solve for x
    x = 255,163,569,936.01/578,035.53
  6. Step 6: Final answer
    x = 441,432.33

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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.