Home / 783,117.80-1,174,676.70-772,620.20

Finding the Fourth Proportional to 783,117.80, 1,174,676.70 and 772,620.20

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Solution

The fourth proportional to 783,117.80, 1,174,676.70 and 772,620.20 is: 1,158,930.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,117.80 : 1,174,676.70 = 772,620.20 : x
  2. Step 2: Convert to fraction form
    783,117.80/1,174,676.70 = 772,620.20/x
  3. Step 3: Cross multiply
    783,117.80x = 1,174,676.70 × 772,620.20
  4. Step 4: Simplify right side
    783,117.80x = 907,578,946,889.34
  5. Step 5: Solve for x
    x = 907,578,946,889.34/783,117.80
  6. Step 6: Final answer
    x = 1,158,930.30

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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.