Home / 768,145.92-1,152,398.10-262,710.78

Finding the Fourth Proportional to 768,145.92, 1,152,398.10 and 262,710.78

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Solution

The fourth proportional to 768,145.92, 1,152,398.10 and 262,710.78 is: 394,127.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,145.92 : 1,152,398.10 = 262,710.78 : x
  2. Step 2: Convert to fraction form
    768,145.92/1,152,398.10 = 262,710.78/x
  3. Step 3: Cross multiply
    768,145.92x = 1,152,398.10 × 262,710.78
  4. Step 4: Simplify right side
    768,145.92x = 302,747,403,721.52
  5. Step 5: Solve for x
    x = 302,747,403,721.52/768,145.92
  6. Step 6: Final answer
    x = 394,127.46

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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.