Home / 1,126,170-1,688,905.48-406,418.24

Finding the Fourth Proportional to 1,126,170, 1,688,905.48 and 406,418.24

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Solution

The fourth proportional to 1,126,170, 1,688,905.48 and 406,418.24 is: 609,501.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,170 : 1,688,905.48 = 406,418.24 : x
  2. Step 2: Convert to fraction form
    1,126,170/1,688,905.48 = 406,418.24/x
  3. Step 3: Cross multiply
    1,126,170x = 1,688,905.48 × 406,418.24
  4. Step 4: Simplify right side
    1,126,170x = 686,401,992,707.96
  5. Step 5: Solve for x
    x = 686,401,992,707.96/1,126,170
  6. Step 6: Final answer
    x = 609,501.22

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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.