Home / 2,128,915.16-2,937,464.35-1,223,322.20

Finding the Fourth Proportional to 2,128,915.16, 2,937,464.35 and 1,223,322.20

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Solution

The fourth proportional to 2,128,915.16, 2,937,464.35 and 1,223,322.20 is: 1,687,932.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,915.16 : 2,937,464.35 = 1,223,322.20 : x
  2. Step 2: Convert to fraction form
    2,128,915.16/2,937,464.35 = 1,223,322.20/x
  3. Step 3: Cross multiply
    2,128,915.16x = 2,937,464.35 × 1,223,322.20
  4. Step 4: Simplify right side
    2,128,915.16x = 3,593,465,330,259.64
  5. Step 5: Solve for x
    x = 3,593,465,330,259.64/2,128,915.16
  6. Step 6: Final answer
    x = 1,687,932.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.