Home / 1,345,473.64-1,856,797.86-772,615.72

Finding the Fourth Proportional to 1,345,473.64, 1,856,797.86 and 772,615.72

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Solution

The fourth proportional to 1,345,473.64, 1,856,797.86 and 772,615.72 is: 1,066,235.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,473.64 : 1,856,797.86 = 772,615.72 : x
  2. Step 2: Convert to fraction form
    1,345,473.64/1,856,797.86 = 772,615.72/x
  3. Step 3: Cross multiply
    1,345,473.64x = 1,856,797.86 × 772,615.72
  4. Step 4: Simplify right side
    1,345,473.64x = 1,434,591,215,498.36
  5. Step 5: Solve for x
    x = 1,434,591,215,498.36/1,345,473.64
  6. Step 6: Final answer
    x = 1,066,235.10

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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.