Home / 768,367.72-1,152,681.18-319,329.64

Finding the Fourth Proportional to 768,367.72, 1,152,681.18 and 319,329.64

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Solution

The fourth proportional to 768,367.72, 1,152,681.18 and 319,329.64 is: 479,048.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,367.72 : 1,152,681.18 = 319,329.64 : x
  2. Step 2: Convert to fraction form
    768,367.72/1,152,681.18 = 319,329.64/x
  3. Step 3: Cross multiply
    768,367.72x = 1,152,681.18 × 319,329.64
  4. Step 4: Simplify right side
    768,367.72x = 368,085,266,244.18
  5. Step 5: Solve for x
    x = 368,085,266,244.18/768,367.72
  6. Step 6: Final answer
    x = 479,048.32

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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.