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Finding the Fourth Proportional to 507,389.41, 699,714.23 and 303,407.11

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Solution

The fourth proportional to 507,389.41, 699,714.23 and 303,407.11 is: 418,412.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,389.41 : 699,714.23 = 303,407.11 : x
  2. Step 2: Convert to fraction form
    507,389.41/699,714.23 = 303,407.11/x
  3. Step 3: Cross multiply
    507,389.41x = 699,714.23 × 303,407.11
  4. Step 4: Simplify right side
    507,389.41x = 212,298,273,414.45
  5. Step 5: Solve for x
    x = 212,298,273,414.45/507,389.41
  6. Step 6: Final answer
    x = 418,412.90

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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.