Home / 862,939.74-1,190,897.60-480,969.30

Finding the Fourth Proportional to 862,939.74, 1,190,897.60 and 480,969.30

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Solution

The fourth proportional to 862,939.74, 1,190,897.60 and 480,969.30 is: 663,760.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,939.74 : 1,190,897.60 = 480,969.30 : x
  2. Step 2: Convert to fraction form
    862,939.74/1,190,897.60 = 480,969.30/x
  3. Step 3: Cross multiply
    862,939.74x = 1,190,897.60 × 480,969.30
  4. Step 4: Simplify right side
    862,939.74x = 572,785,182,638.83
  5. Step 5: Solve for x
    x = 572,785,182,638.83/862,939.74
  6. Step 6: Final answer
    x = 663,760.35

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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.