Home / 3,986,428.17-5,980,594.74-1,290,756.35

Finding the Fourth Proportional to 3,986,428.17, 5,980,594.74 and 1,290,756.35

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Solution

The fourth proportional to 3,986,428.17, 5,980,594.74 and 1,290,756.35 is: 1,936,442.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,428.17 : 5,980,594.74 = 1,290,756.35 : x
  2. Step 2: Convert to fraction form
    3,986,428.17/5,980,594.74 = 1,290,756.35/x
  3. Step 3: Cross multiply
    3,986,428.17x = 5,980,594.74 × 1,290,756.35
  4. Step 4: Simplify right side
    3,986,428.17x = 7,719,490,607,528.63
  5. Step 5: Solve for x
    x = 7,719,490,607,528.63/3,986,428.17
  6. Step 6: Final answer
    x = 1,936,442.92

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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.