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Finding the Fourth Proportional to 507,419.32, 699,901.16 and 326,360.36

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Solution

The fourth proportional to 507,419.32, 699,901.16 and 326,360.36 is: 450,160.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,419.32 : 699,901.16 = 326,360.36 : x
  2. Step 2: Convert to fraction form
    507,419.32/699,901.16 = 326,360.36/x
  3. Step 3: Cross multiply
    507,419.32x = 699,901.16 × 326,360.36
  4. Step 4: Simplify right side
    507,419.32x = 228,419,994,542.02
  5. Step 5: Solve for x
    x = 228,419,994,542.02/507,419.32
  6. Step 6: Final answer
    x = 450,160.22

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1.5x scale

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.