Home / 2,857,661.21-4,287,238.76-1,658,430.71

Finding the Fourth Proportional to 2,857,661.21, 4,287,238.76 and 1,658,430.71

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Solution

The fourth proportional to 2,857,661.21, 4,287,238.76 and 1,658,430.71 is: 2,488,079.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,857,661.21 : 4,287,238.76 = 1,658,430.71 : x
  2. Step 2: Convert to fraction form
    2,857,661.21/4,287,238.76 = 1,658,430.71/x
  3. Step 3: Cross multiply
    2,857,661.21x = 4,287,238.76 × 1,658,430.71
  4. Step 4: Simplify right side
    2,857,661.21x = 7,110,088,420,686.32
  5. Step 5: Solve for x
    x = 7,110,088,420,686.32/2,857,661.21
  6. Step 6: Final answer
    x = 2,488,079.55

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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.