Home / 1,126,146-1,688,869.46-406,394.22

Finding the Fourth Proportional to 1,126,146, 1,688,869.46 and 406,394.22

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Solution

The fourth proportional to 1,126,146, 1,688,869.46 and 406,394.22 is: 609,465.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,146 : 1,688,869.46 = 406,394.22 : x
  2. Step 2: Convert to fraction form
    1,126,146/1,688,869.46 = 406,394.22/x
  3. Step 3: Cross multiply
    1,126,146x = 1,688,869.46 × 406,394.22
  4. Step 4: Simplify right side
    1,126,146x = 686,346,786,878.52
  5. Step 5: Solve for x
    x = 686,346,786,878.52/1,126,146
  6. Step 6: Final answer
    x = 609,465.19

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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.