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Finding the Fourth Proportional to 891,886.86, 1,230,797.52 and 483,978.33

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Solution

The fourth proportional to 891,886.86, 1,230,797.52 and 483,978.33 is: 667,886.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,886.86 : 1,230,797.52 = 483,978.33 : x
  2. Step 2: Convert to fraction form
    891,886.86/1,230,797.52 = 483,978.33/x
  3. Step 3: Cross multiply
    891,886.86x = 1,230,797.52 × 483,978.33
  4. Step 4: Simplify right side
    891,886.86x = 595,679,328,297.74
  5. Step 5: Solve for x
    x = 595,679,328,297.74/891,886.86
  6. Step 6: Final answer
    x = 667,886.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.