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Finding the Fourth Proportional to 618,486.90, 927,730.35 and 552,002.10

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Solution

The fourth proportional to 618,486.90, 927,730.35 and 552,002.10 is: 828,003.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,486.90 : 927,730.35 = 552,002.10 : x
  2. Step 2: Convert to fraction form
    618,486.90/927,730.35 = 552,002.10/x
  3. Step 3: Cross multiply
    618,486.90x = 927,730.35 × 552,002.10
  4. Step 4: Simplify right side
    618,486.90x = 512,109,101,433.74
  5. Step 5: Solve for x
    x = 512,109,101,433.74/618,486.90
  6. Step 6: Final answer
    x = 828,003.15

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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.