Home / 768,138.02-1,152,437.66-363,638.51

Finding the Fourth Proportional to 768,138.02, 1,152,437.66 and 363,638.51

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Solution

The fourth proportional to 768,138.02, 1,152,437.66 and 363,638.51 is: 545,566.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,138.02 : 1,152,437.66 = 363,638.51 : x
  2. Step 2: Convert to fraction form
    768,138.02/1,152,437.66 = 363,638.51/x
  3. Step 3: Cross multiply
    768,138.02x = 1,152,437.66 × 363,638.51
  4. Step 4: Simplify right side
    768,138.02x = 419,070,705,969.91
  5. Step 5: Solve for x
    x = 419,070,705,969.91/768,138.02
  6. Step 6: Final answer
    x = 545,566.94

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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.