Home / 714,295.76-985,725.04-392,011.06

Finding the Fourth Proportional to 714,295.76, 985,725.04 and 392,011.06

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Solution

The fourth proportional to 714,295.76, 985,725.04 and 392,011.06 is: 540,973.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,295.76 : 985,725.04 = 392,011.06 : x
  2. Step 2: Convert to fraction form
    714,295.76/985,725.04 = 392,011.06/x
  3. Step 3: Cross multiply
    714,295.76x = 985,725.04 × 392,011.06
  4. Step 4: Simplify right side
    714,295.76x = 386,415,117,798.94
  5. Step 5: Solve for x
    x = 386,415,117,798.94/714,295.76
  6. Step 6: Final answer
    x = 540,973.56

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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.