Home / 1,210,169.70-1,815,387.49-400,259.07

Finding the Fourth Proportional to 1,210,169.70, 1,815,387.49 and 400,259.07

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Solution

The fourth proportional to 1,210,169.70, 1,815,387.49 and 400,259.07 is: 600,432.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,169.70 : 1,815,387.49 = 400,259.07 : x
  2. Step 2: Convert to fraction form
    1,210,169.70/1,815,387.49 = 400,259.07/x
  3. Step 3: Cross multiply
    1,210,169.70x = 1,815,387.49 × 400,259.07
  4. Step 4: Simplify right side
    1,210,169.70x = 726,625,308,937.36
  5. Step 5: Solve for x
    x = 726,625,308,937.36/1,210,169.70
  6. Step 6: Final answer
    x = 600,432.57

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1.5x scale

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.