Home / 818,124.18-1,129,062.65-450,601.25

Finding the Fourth Proportional to 818,124.18, 1,129,062.65 and 450,601.25

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Solution

The fourth proportional to 818,124.18, 1,129,062.65 and 450,601.25 is: 621,857.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,124.18 : 1,129,062.65 = 450,601.25 : x
  2. Step 2: Convert to fraction form
    818,124.18/1,129,062.65 = 450,601.25/x
  3. Step 3: Cross multiply
    818,124.18x = 1,129,062.65 × 450,601.25
  4. Step 4: Simplify right side
    818,124.18x = 508,757,033,519.99
  5. Step 5: Solve for x
    x = 508,757,033,519.99/818,124.18
  6. Step 6: Final answer
    x = 621,857.96

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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.