Home / 1,011,511.72-1,395,914.34-558,831.88

Finding the Fourth Proportional to 1,011,511.72, 1,395,914.34 and 558,831.88

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Solution

The fourth proportional to 1,011,511.72, 1,395,914.34 and 558,831.88 is: 771,203.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,511.72 : 1,395,914.34 = 558,831.88 : x
  2. Step 2: Convert to fraction form
    1,011,511.72/1,395,914.34 = 558,831.88/x
  3. Step 3: Cross multiply
    1,011,511.72x = 1,395,914.34 × 558,831.88
  4. Step 4: Simplify right side
    1,011,511.72x = 780,081,434,941.16
  5. Step 5: Solve for x
    x = 780,081,434,941.16/1,011,511.72
  6. Step 6: Final answer
    x = 771,203.56

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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.