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Finding the Fourth Proportional to 553,271.40, 828,351.90 and 537,719.40

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Solution

The fourth proportional to 553,271.40, 828,351.90 and 537,719.40 is: 805,067.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,271.40 : 828,351.90 = 537,719.40 : x
  2. Step 2: Convert to fraction form
    553,271.40/828,351.90 = 537,719.40/x
  3. Step 3: Cross multiply
    553,271.40x = 828,351.90 × 537,719.40
  4. Step 4: Simplify right side
    553,271.40x = 445,420,886,656.86
  5. Step 5: Solve for x
    x = 445,420,886,656.86/553,271.40
  6. Step 6: Final answer
    x = 805,067.62

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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.