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Finding the Fourth Proportional to 682,574.32, 941,952.55 and 380,768.32

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Solution

The fourth proportional to 682,574.32, 941,952.55 and 380,768.32 is: 525,460.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,574.32 : 941,952.55 = 380,768.32 : x
  2. Step 2: Convert to fraction form
    682,574.32/941,952.55 = 380,768.32/x
  3. Step 3: Cross multiply
    682,574.32x = 941,952.55 × 380,768.32
  4. Step 4: Simplify right side
    682,574.32x = 358,665,689,983.22
  5. Step 5: Solve for x
    x = 358,665,689,983.22/682,574.32
  6. Step 6: Final answer
    x = 525,460.28

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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.