Home / 1,068,417.64-1,601,519.46-668,139.40

Finding the Fourth Proportional to 1,068,417.64, 1,601,519.46 and 668,139.40

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Solution

The fourth proportional to 1,068,417.64, 1,601,519.46 and 668,139.40 is: 1,001,516.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068,417.64 : 1,601,519.46 = 668,139.40 : x
  2. Step 2: Convert to fraction form
    1,068,417.64/1,601,519.46 = 668,139.40/x
  3. Step 3: Cross multiply
    1,068,417.64x = 1,601,519.46 × 668,139.40
  4. Step 4: Simplify right side
    1,068,417.64x = 1,070,038,251,092.72
  5. Step 5: Solve for x
    x = 1,070,038,251,092.72/1,068,417.64
  6. Step 6: Final answer
    x = 1,001,516.83

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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.