Home / 768,852.78-1,152,847.24-319,271.20

Finding the Fourth Proportional to 768,852.78, 1,152,847.24 and 319,271.20

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Solution

The fourth proportional to 768,852.78, 1,152,847.24 and 319,271.20 is: 478,727.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,852.78 : 1,152,847.24 = 319,271.20 : x
  2. Step 2: Convert to fraction form
    768,852.78/1,152,847.24 = 319,271.20/x
  3. Step 3: Cross multiply
    768,852.78x = 1,152,847.24 × 319,271.20
  4. Step 4: Simplify right side
    768,852.78x = 368,070,921,731.49
  5. Step 5: Solve for x
    x = 368,070,921,731.49/768,852.78
  6. Step 6: Final answer
    x = 478,727.44

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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.