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Finding the Fourth Proportional to 520,030.56, 779,407.80 and 295,579

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Solution

The fourth proportional to 520,030.56, 779,407.80 and 295,579 is: 443,005.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,030.56 : 779,407.80 = 295,579 : x
  2. Step 2: Convert to fraction form
    520,030.56/779,407.80 = 295,579/x
  3. Step 3: Cross multiply
    520,030.56x = 779,407.80 × 295,579
  4. Step 4: Simplify right side
    520,030.56x = 230,376,578,116.20
  5. Step 5: Solve for x
    x = 230,376,578,116.20/520,030.56
  6. Step 6: Final answer
    x = 443,005.85

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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.