Home / 812,232-1,120,724.64-525,712.32

Finding the Fourth Proportional to 812,232, 1,120,724.64 and 525,712.32

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Solution

The fourth proportional to 812,232, 1,120,724.64 and 525,712.32 is: 725,382.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,232 : 1,120,724.64 = 525,712.32 : x
  2. Step 2: Convert to fraction form
    812,232/1,120,724.64 = 525,712.32/x
  3. Step 3: Cross multiply
    812,232x = 1,120,724.64 × 525,712.32
  4. Step 4: Simplify right side
    812,232x = 589,178,750,575.57
  5. Step 5: Solve for x
    x = 589,178,750,575.57/812,232
  6. Step 6: Final answer
    x = 725,382.34

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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.