Home / 1,328,627.40-1,992,941.10-1,258,643.40

Finding the Fourth Proportional to 1,328,627.40, 1,992,941.10 and 1,258,643.40

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Solution

The fourth proportional to 1,328,627.40, 1,992,941.10 and 1,258,643.40 is: 1,887,965.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,627.40 : 1,992,941.10 = 1,258,643.40 : x
  2. Step 2: Convert to fraction form
    1,328,627.40/1,992,941.10 = 1,258,643.40/x
  3. Step 3: Cross multiply
    1,328,627.40x = 1,992,941.10 × 1,258,643.40
  4. Step 4: Simplify right side
    1,328,627.40x = 2,508,402,162,103.74
  5. Step 5: Solve for x
    x = 2,508,402,162,103.74/1,328,627.40
  6. Step 6: Final answer
    x = 1,887,965.10

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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.