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Finding the Fourth Proportional to 553,272.40, 828,353.40 and 537,720.40

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Solution

The fourth proportional to 553,272.40, 828,353.40 and 537,720.40 is: 805,069.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,272.40 : 828,353.40 = 537,720.40 : x
  2. Step 2: Convert to fraction form
    553,272.40/828,353.40 = 537,720.40/x
  3. Step 3: Cross multiply
    553,272.40x = 828,353.40 × 537,720.40
  4. Step 4: Simplify right side
    553,272.40x = 445,422,521,589.36
  5. Step 5: Solve for x
    x = 445,422,521,589.36/553,272.40
  6. Step 6: Final answer
    x = 805,069.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.