Home / 885,311.25-1,221,729.53-482,903.25

Finding the Fourth Proportional to 885,311.25, 1,221,729.53 and 482,903.25

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Solution

The fourth proportional to 885,311.25, 1,221,729.53 and 482,903.25 is: 666,406.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,311.25 : 1,221,729.53 = 482,903.25 : x
  2. Step 2: Convert to fraction form
    885,311.25/1,221,729.53 = 482,903.25/x
  3. Step 3: Cross multiply
    885,311.25x = 1,221,729.53 × 482,903.25
  4. Step 4: Simplify right side
    885,311.25x = 589,977,158,243.46
  5. Step 5: Solve for x
    x = 589,977,158,243.46/885,311.25
  6. Step 6: Final answer
    x = 666,406.49

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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.