Home / 717,986.80-1,076,980.20-648,002.80

Finding the Fourth Proportional to 717,986.80, 1,076,980.20 and 648,002.80

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Solution

The fourth proportional to 717,986.80, 1,076,980.20 and 648,002.80 is: 972,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,986.80 : 1,076,980.20 = 648,002.80 : x
  2. Step 2: Convert to fraction form
    717,986.80/1,076,980.20 = 648,002.80/x
  3. Step 3: Cross multiply
    717,986.80x = 1,076,980.20 × 648,002.80
  4. Step 4: Simplify right side
    717,986.80x = 697,886,185,144.56
  5. Step 5: Solve for x
    x = 697,886,185,144.56/717,986.80
  6. Step 6: Final answer
    x = 972,004.20

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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.