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Finding the Fourth Proportional to 579,807.36, 869,918.22 and 352,565.33

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Solution

The fourth proportional to 579,807.36, 869,918.22 and 352,565.33 is: 528,973.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,807.36 : 869,918.22 = 352,565.33 : x
  2. Step 2: Convert to fraction form
    579,807.36/869,918.22 = 352,565.33/x
  3. Step 3: Cross multiply
    579,807.36x = 869,918.22 × 352,565.33
  4. Step 4: Simplify right side
    579,807.36x = 306,702,999,957.72
  5. Step 5: Solve for x
    x = 306,702,999,957.72/579,807.36
  6. Step 6: Final answer
    x = 528,973.97

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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.