Home / 1,405,939.70-2,108,909.55-507,520.10

Finding the Fourth Proportional to 1,405,939.70, 2,108,909.55 and 507,520.10

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Solution

The fourth proportional to 1,405,939.70, 2,108,909.55 and 507,520.10 is: 761,280.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,939.70 : 2,108,909.55 = 507,520.10 : x
  2. Step 2: Convert to fraction form
    1,405,939.70/2,108,909.55 = 507,520.10/x
  3. Step 3: Cross multiply
    1,405,939.70x = 2,108,909.55 × 507,520.10
  4. Step 4: Simplify right side
    1,405,939.70x = 1,070,313,985,706.95
  5. Step 5: Solve for x
    x = 1,070,313,985,706.95/1,405,939.70
  6. Step 6: Final answer
    x = 761,280.15

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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.