Home / 872,232.49-1,203,681.83-485,039.63

Finding the Fourth Proportional to 872,232.49, 1,203,681.83 and 485,039.63

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Solution

The fourth proportional to 872,232.49, 1,203,681.83 and 485,039.63 is: 669,355.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,232.49 : 1,203,681.83 = 485,039.63 : x
  2. Step 2: Convert to fraction form
    872,232.49/1,203,681.83 = 485,039.63/x
  3. Step 3: Cross multiply
    872,232.49x = 1,203,681.83 × 485,039.63
  4. Step 4: Simplify right side
    872,232.49x = 583,833,389,460.92
  5. Step 5: Solve for x
    x = 583,833,389,460.92/872,232.49
  6. Step 6: Final answer
    x = 669,355.24

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Double scale
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Similar ratio
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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.