Home / 768,554.91-1,152,874.40-319,321.19

Finding the Fourth Proportional to 768,554.91, 1,152,874.40 and 319,321.19

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Solution

The fourth proportional to 768,554.91, 1,152,874.40 and 319,321.19 is: 478,999.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,554.91 : 1,152,874.40 = 319,321.19 : x
  2. Step 2: Convert to fraction form
    768,554.91/1,152,874.40 = 319,321.19/x
  3. Step 3: Cross multiply
    768,554.91x = 1,152,874.40 × 319,321.19
  4. Step 4: Simplify right side
    768,554.91x = 368,137,226,614.12
  5. Step 5: Solve for x
    x = 368,137,226,614.12/768,554.91
  6. Step 6: Final answer
    x = 478,999.25

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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.