Home / 740,990.81-1,022,003.09-637,800.63

Finding the Fourth Proportional to 740,990.81, 1,022,003.09 and 637,800.63

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Solution

The fourth proportional to 740,990.81, 1,022,003.09 and 637,800.63 is: 879,679.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,990.81 : 1,022,003.09 = 637,800.63 : x
  2. Step 2: Convert to fraction form
    740,990.81/1,022,003.09 = 637,800.63/x
  3. Step 3: Cross multiply
    740,990.81x = 1,022,003.09 × 637,800.63
  4. Step 4: Simplify right side
    740,990.81x = 651,834,216,258.45
  5. Step 5: Solve for x
    x = 651,834,216,258.45/740,990.81
  6. Step 6: Final answer
    x = 879,679.22

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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.