Home / 1,659,685.57-2,290,422.69-971,421.48

Finding the Fourth Proportional to 1,659,685.57, 2,290,422.69 and 971,421.48

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Solution

The fourth proportional to 1,659,685.57, 2,290,422.69 and 971,421.48 is: 1,340,594.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,659,685.57 : 2,290,422.69 = 971,421.48 : x
  2. Step 2: Convert to fraction form
    1,659,685.57/2,290,422.69 = 971,421.48/x
  3. Step 3: Cross multiply
    1,659,685.57x = 2,290,422.69 × 971,421.48
  4. Step 4: Simplify right side
    1,659,685.57x = 2,224,965,799,345.38
  5. Step 5: Solve for x
    x = 2,224,965,799,345.38/1,659,685.57
  6. Step 6: Final answer
    x = 1,340,594.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.