Home / 1,721,169.92-2,581,316.16-1,220,434.40

Finding the Fourth Proportional to 1,721,169.92, 2,581,316.16 and 1,220,434.40

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Solution

The fourth proportional to 1,721,169.92, 2,581,316.16 and 1,220,434.40 is: 1,830,340.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721,169.92 : 2,581,316.16 = 1,220,434.40 : x
  2. Step 2: Convert to fraction form
    1,721,169.92/2,581,316.16 = 1,220,434.40/x
  3. Step 3: Cross multiply
    1,721,169.92x = 2,581,316.16 × 1,220,434.40
  4. Step 4: Simplify right side
    1,721,169.92x = 3,150,327,038,939.90
  5. Step 5: Solve for x
    x = 3,150,327,038,939.90/1,721,169.92
  6. Step 6: Final answer
    x = 1,830,340.52

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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.