Home / 811,648.80-1,119,865.19-484,828.08

Finding the Fourth Proportional to 811,648.80, 1,119,865.19 and 484,828.08

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Solution

The fourth proportional to 811,648.80, 1,119,865.19 and 484,828.08 is: 668,937.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,648.80 : 1,119,865.19 = 484,828.08 : x
  2. Step 2: Convert to fraction form
    811,648.80/1,119,865.19 = 484,828.08/x
  3. Step 3: Cross multiply
    811,648.80x = 1,119,865.19 × 484,828.08
  4. Step 4: Simplify right side
    811,648.80x = 542,942,087,502.40
  5. Step 5: Solve for x
    x = 542,942,087,502.40/811,648.80
  6. Step 6: Final answer
    x = 668,937.21

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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.