Home / 768,406.95-1,152,759.87-295,057.53

Finding the Fourth Proportional to 768,406.95, 1,152,759.87 and 295,057.53

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Solution

The fourth proportional to 768,406.95, 1,152,759.87 and 295,057.53 is: 442,643.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,406.95 : 1,152,759.87 = 295,057.53 : x
  2. Step 2: Convert to fraction form
    768,406.95/1,152,759.87 = 295,057.53/x
  3. Step 3: Cross multiply
    768,406.95x = 1,152,759.87 × 295,057.53
  4. Step 4: Simplify right side
    768,406.95x = 340,130,479,925.32
  5. Step 5: Solve for x
    x = 340,130,479,925.32/768,406.95
  6. Step 6: Final answer
    x = 442,643.68

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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.