Home / 2,600,386.90-3,900,580.35-1,643,793.10

Finding the Fourth Proportional to 2,600,386.90, 3,900,580.35 and 1,643,793.10

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Solution

The fourth proportional to 2,600,386.90, 3,900,580.35 and 1,643,793.10 is: 2,465,689.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,600,386.90 : 3,900,580.35 = 1,643,793.10 : x
  2. Step 2: Convert to fraction form
    2,600,386.90/3,900,580.35 = 1,643,793.10/x
  3. Step 3: Cross multiply
    2,600,386.90x = 3,900,580.35 × 1,643,793.10
  4. Step 4: Simplify right side
    2,600,386.90x = 6,411,747,065,325.59
  5. Step 5: Solve for x
    x = 6,411,747,065,325.59/2,600,386.90
  6. Step 6: Final answer
    x = 2,465,689.65

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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.