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Finding the Fourth Proportional to 553,274.16, 763,525.56 and 323,974.32

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Solution

The fourth proportional to 553,274.16, 763,525.56 and 323,974.32 is: 447,088.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,274.16 : 763,525.56 = 323,974.32 : x
  2. Step 2: Convert to fraction form
    553,274.16/763,525.56 = 323,974.32/x
  3. Step 3: Cross multiply
    553,274.16x = 763,525.56 × 323,974.32
  4. Step 4: Simplify right side
    553,274.16x = 247,362,674,103.62
  5. Step 5: Solve for x
    x = 247,362,674,103.62/553,274.16
  6. Step 6: Final answer
    x = 447,088.79

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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.