Home / 2,986,501.40-4,479,768.30-742,639.40

Finding the Fourth Proportional to 2,986,501.40, 4,479,768.30 and 742,639.40

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Solution

The fourth proportional to 2,986,501.40, 4,479,768.30 and 742,639.40 is: 1,113,963.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986,501.40 : 4,479,768.30 = 742,639.40 : x
  2. Step 2: Convert to fraction form
    2,986,501.40/4,479,768.30 = 742,639.40/x
  3. Step 3: Cross multiply
    2,986,501.40x = 4,479,768.30 × 742,639.40
  4. Step 4: Simplify right side
    2,986,501.40x = 3,326,852,442,451.02
  5. Step 5: Solve for x
    x = 3,326,852,442,451.02/2,986,501.40
  6. Step 6: Final answer
    x = 1,113,963.13

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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.