Home / 1,405,938.70-2,108,908.05-507,519.10

Finding the Fourth Proportional to 1,405,938.70, 2,108,908.05 and 507,519.10

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Solution

The fourth proportional to 1,405,938.70, 2,108,908.05 and 507,519.10 is: 761,278.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,938.70 : 2,108,908.05 = 507,519.10 : x
  2. Step 2: Convert to fraction form
    1,405,938.70/2,108,908.05 = 507,519.10/x
  3. Step 3: Cross multiply
    1,405,938.70x = 2,108,908.05 × 507,519.10
  4. Step 4: Simplify right side
    1,405,938.70x = 1,070,311,115,518.75
  5. Step 5: Solve for x
    x = 1,070,311,115,518.75/1,405,938.70
  6. Step 6: Final answer
    x = 761,278.65

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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.