Home / 910,510.60-1,365,765.90-611,912.20

Finding the Fourth Proportional to 910,510.60, 1,365,765.90 and 611,912.20

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Solution

The fourth proportional to 910,510.60, 1,365,765.90 and 611,912.20 is: 917,868.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,510.60 : 1,365,765.90 = 611,912.20 : x
  2. Step 2: Convert to fraction form
    910,510.60/1,365,765.90 = 611,912.20/x
  3. Step 3: Cross multiply
    910,510.60x = 1,365,765.90 × 611,912.20
  4. Step 4: Simplify right side
    910,510.60x = 835,728,816,553.98
  5. Step 5: Solve for x
    x = 835,728,816,553.98/910,510.60
  6. Step 6: Final answer
    x = 917,868.30

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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.