Home / 768,588.98-1,152,925.43-319,355.28

Finding the Fourth Proportional to 768,588.98, 1,152,925.43 and 319,355.28

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Solution

The fourth proportional to 768,588.98, 1,152,925.43 and 319,355.28 is: 479,050.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,588.98 : 1,152,925.43 = 319,355.28 : x
  2. Step 2: Convert to fraction form
    768,588.98/1,152,925.43 = 319,355.28/x
  3. Step 3: Cross multiply
    768,588.98x = 1,152,925.43 × 319,355.28
  4. Step 4: Simplify right side
    768,588.98x = 368,192,821,919.99
  5. Step 5: Solve for x
    x = 368,192,821,919.99/768,588.98
  6. Step 6: Final answer
    x = 479,050.36

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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.