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Finding the Fourth Proportional to 630,436.36, 944,435.28 and 528,018.43

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Solution

The fourth proportional to 630,436.36, 944,435.28 and 528,018.43 is: 791,006.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,436.36 : 944,435.28 = 528,018.43 : x
  2. Step 2: Convert to fraction form
    630,436.36/944,435.28 = 528,018.43/x
  3. Step 3: Cross multiply
    630,436.36x = 944,435.28 × 528,018.43
  4. Step 4: Simplify right side
    630,436.36x = 498,679,229,095.91
  5. Step 5: Solve for x
    x = 498,679,229,095.91/630,436.36
  6. Step 6: Final answer
    x = 791,006.45

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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.