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Finding the Fourth Proportional to 553,403.64, 763,808.22 and 362,347.32

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Solution

The fourth proportional to 553,403.64, 763,808.22 and 362,347.32 is: 500,112.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,403.64 : 763,808.22 = 362,347.32 : x
  2. Step 2: Convert to fraction form
    553,403.64/763,808.22 = 362,347.32/x
  3. Step 3: Cross multiply
    553,403.64x = 763,808.22 × 362,347.32
  4. Step 4: Simplify right side
    553,403.64x = 276,763,861,510.97
  5. Step 5: Solve for x
    x = 276,763,861,510.97/553,403.64
  6. Step 6: Final answer
    x = 500,112.11

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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.