Home / 1,126,171-1,688,906.98-406,419.24

Finding the Fourth Proportional to 1,126,171, 1,688,906.98 and 406,419.24

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Solution

The fourth proportional to 1,126,171, 1,688,906.98 and 406,419.24 is: 609,502.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,171 : 1,688,906.98 = 406,419.24 : x
  2. Step 2: Convert to fraction form
    1,126,171/1,688,906.98 = 406,419.24/x
  3. Step 3: Cross multiply
    1,126,171x = 1,688,906.98 × 406,419.24
  4. Step 4: Simplify right side
    1,126,171x = 686,404,291,242.30
  5. Step 5: Solve for x
    x = 686,404,291,242.30/1,126,171
  6. Step 6: Final answer
    x = 609,502.72

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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.