Home / 717,933.80-1,076,382.30-402,487.40

Finding the Fourth Proportional to 717,933.80, 1,076,382.30 and 402,487.40

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Solution

The fourth proportional to 717,933.80, 1,076,382.30 and 402,487.40 is: 603,440.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,933.80 : 1,076,382.30 = 402,487.40 : x
  2. Step 2: Convert to fraction form
    717,933.80/1,076,382.30 = 402,487.40/x
  3. Step 3: Cross multiply
    717,933.80x = 1,076,382.30 × 402,487.40
  4. Step 4: Simplify right side
    717,933.80x = 433,230,313,333.02
  5. Step 5: Solve for x
    x = 433,230,313,333.02/717,933.80
  6. Step 6: Final answer
    x = 603,440.48

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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.