Home / 942,122.64-1,406,802.45-747,817.11

Finding the Fourth Proportional to 942,122.64, 1,406,802.45 and 747,817.11

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Solution

The fourth proportional to 942,122.64, 1,406,802.45 and 747,817.11 is: 1,116,660.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,122.64 : 1,406,802.45 = 747,817.11 : x
  2. Step 2: Convert to fraction form
    942,122.64/1,406,802.45 = 747,817.11/x
  3. Step 3: Cross multiply
    942,122.64x = 1,406,802.45 × 747,817.11
  4. Step 4: Simplify right side
    942,122.64x = 1,052,030,942,499.92
  5. Step 5: Solve for x
    x = 1,052,030,942,499.92/942,122.64
  6. Step 6: Final answer
    x = 1,116,660.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.