Home / 872,231.49-1,203,680.45-485,038.63

Finding the Fourth Proportional to 872,231.49, 1,203,680.45 and 485,038.63

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Solution

The fourth proportional to 872,231.49, 1,203,680.45 and 485,038.63 is: 669,353.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,231.49 : 1,203,680.45 = 485,038.63 : x
  2. Step 2: Convert to fraction form
    872,231.49/1,203,680.45 = 485,038.63/x
  3. Step 3: Cross multiply
    872,231.49x = 1,203,680.45 × 485,038.63
  4. Step 4: Simplify right side
    872,231.49x = 583,831,519,142.98
  5. Step 5: Solve for x
    x = 583,831,519,142.98/872,231.49
  6. Step 6: Final answer
    x = 669,353.87

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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.