Home / 1,005,009.30-1,507,053.15-443,754.90

Finding the Fourth Proportional to 1,005,009.30, 1,507,053.15 and 443,754.90

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Solution

The fourth proportional to 1,005,009.30, 1,507,053.15 and 443,754.90 is: 665,428.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,009.30 : 1,507,053.15 = 443,754.90 : x
  2. Step 2: Convert to fraction form
    1,005,009.30/1,507,053.15 = 443,754.90/x
  3. Step 3: Cross multiply
    1,005,009.30x = 1,507,053.15 × 443,754.90
  4. Step 4: Simplify right side
    1,005,009.30x = 668,762,219,872.94
  5. Step 5: Solve for x
    x = 668,762,219,872.94/1,005,009.30
  6. Step 6: Final answer
    x = 665,428.89

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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.