Home / 1,668,549.66-2,503,449.93-770,421.66

Finding the Fourth Proportional to 1,668,549.66, 2,503,449.93 and 770,421.66

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Solution

The fourth proportional to 1,668,549.66, 2,503,449.93 and 770,421.66 is: 1,155,921.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668,549.66 : 2,503,449.93 = 770,421.66 : x
  2. Step 2: Convert to fraction form
    1,668,549.66/2,503,449.93 = 770,421.66/x
  3. Step 3: Cross multiply
    1,668,549.66x = 2,503,449.93 × 770,421.66
  4. Step 4: Simplify right side
    1,668,549.66x = 1,928,712,050,797.48
  5. Step 5: Solve for x
    x = 1,928,712,050,797.48/1,668,549.66
  6. Step 6: Final answer
    x = 1,155,921.28

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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.