Home / 811,551.20-1,119,992.49-453,855.20

Finding the Fourth Proportional to 811,551.20, 1,119,992.49 and 453,855.20

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Solution

The fourth proportional to 811,551.20, 1,119,992.49 and 453,855.20 is: 626,349.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,551.20 : 1,119,992.49 = 453,855.20 : x
  2. Step 2: Convert to fraction form
    811,551.20/1,119,992.49 = 453,855.20/x
  3. Step 3: Cross multiply
    811,551.20x = 1,119,992.49 × 453,855.20
  4. Step 4: Simplify right side
    811,551.20x = 508,314,409,947.49
  5. Step 5: Solve for x
    x = 508,314,409,947.49/811,551.20
  6. Step 6: Final answer
    x = 626,349.16

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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.