Home / 977,223.56-1,348,644.87-628,675.20

Finding the Fourth Proportional to 977,223.56, 1,348,644.87 and 628,675.20

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Solution

The fourth proportional to 977,223.56, 1,348,644.87 and 628,675.20 is: 867,620.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,223.56 : 1,348,644.87 = 628,675.20 : x
  2. Step 2: Convert to fraction form
    977,223.56/1,348,644.87 = 628,675.20/x
  3. Step 3: Cross multiply
    977,223.56x = 1,348,644.87 × 628,675.20
  4. Step 4: Simplify right side
    977,223.56x = 847,859,583,376.22
  5. Step 5: Solve for x
    x = 847,859,583,376.22/977,223.56
  6. Step 6: Final answer
    x = 867,620.90

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1.5x scale

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.