Home / 872,139.69-1,203,524.73-484,953.21

Finding the Fourth Proportional to 872,139.69, 1,203,524.73 and 484,953.21

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Solution

The fourth proportional to 872,139.69, 1,203,524.73 and 484,953.21 is: 669,219.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,139.69 : 1,203,524.73 = 484,953.21 : x
  2. Step 2: Convert to fraction form
    872,139.69/1,203,524.73 = 484,953.21/x
  3. Step 3: Cross multiply
    872,139.69x = 1,203,524.73 × 484,953.21
  4. Step 4: Simplify right side
    872,139.69x = 583,653,181,127.88
  5. Step 5: Solve for x
    x = 583,653,181,127.88/872,139.69
  6. Step 6: Final answer
    x = 669,219.84

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Double scale
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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.