Home / 771,976.40-1,159,001.40-492,731.60

Finding the Fourth Proportional to 771,976.40, 1,159,001.40 and 492,731.60

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Solution

The fourth proportional to 771,976.40, 1,159,001.40 and 492,731.60 is: 739,759.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,976.40 : 1,159,001.40 = 492,731.60 : x
  2. Step 2: Convert to fraction form
    771,976.40/1,159,001.40 = 492,731.60/x
  3. Step 3: Cross multiply
    771,976.40x = 1,159,001.40 × 492,731.60
  4. Step 4: Simplify right side
    771,976.40x = 571,076,614,224.24
  5. Step 5: Solve for x
    x = 571,076,614,224.24/771,976.40
  6. Step 6: Final answer
    x = 739,759.16

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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.