Home / 717,595.25-1,076,373.18-312,787.21

Finding the Fourth Proportional to 717,595.25, 1,076,373.18 and 312,787.21

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Solution

The fourth proportional to 717,595.25, 1,076,373.18 and 312,787.21 is: 469,172.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,595.25 : 1,076,373.18 = 312,787.21 : x
  2. Step 2: Convert to fraction form
    717,595.25/1,076,373.18 = 312,787.21/x
  3. Step 3: Cross multiply
    717,595.25x = 1,076,373.18 × 312,787.21
  4. Step 4: Simplify right side
    717,595.25x = 336,675,760,027.14
  5. Step 5: Solve for x
    x = 336,675,760,027.14/717,595.25
  6. Step 6: Final answer
    x = 469,172.23

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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.