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Finding the Fourth Proportional to 507,030.10, 699,700.35 and 303,071.13

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Solution

The fourth proportional to 507,030.10, 699,700.35 and 303,071.13 is: 418,237.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,030.10 : 699,700.35 = 303,071.13 : x
  2. Step 2: Convert to fraction form
    507,030.10/699,700.35 = 303,071.13/x
  3. Step 3: Cross multiply
    507,030.10x = 699,700.35 × 303,071.13
  4. Step 4: Simplify right side
    507,030.10x = 212,058,976,872.41
  5. Step 5: Solve for x
    x = 212,058,976,872.41/507,030.10
  6. Step 6: Final answer
    x = 418,237.45

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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.