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Finding the Fourth Proportional to 507,572.32, 700,132.64 and 326,520

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Solution

The fourth proportional to 507,572.32, 700,132.64 and 326,520 is: 450,393.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,572.32 : 700,132.64 = 326,520 : x
  2. Step 2: Convert to fraction form
    507,572.32/700,132.64 = 326,520/x
  3. Step 3: Cross multiply
    507,572.32x = 700,132.64 × 326,520
  4. Step 4: Simplify right side
    507,572.32x = 228,607,309,612.80
  5. Step 5: Solve for x
    x = 228,607,309,612.80/507,572.32
  6. Step 6: Final answer
    x = 450,393.57

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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.