Home / 942,172.18-1,412,722.87-643,015.18

Finding the Fourth Proportional to 942,172.18, 1,412,722.87 and 643,015.18

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Solution

The fourth proportional to 942,172.18, 1,412,722.87 and 643,015.18 is: 964,157.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,172.18 : 1,412,722.87 = 643,015.18 : x
  2. Step 2: Convert to fraction form
    942,172.18/1,412,722.87 = 643,015.18/x
  3. Step 3: Cross multiply
    942,172.18x = 1,412,722.87 × 643,015.18
  4. Step 4: Simplify right side
    942,172.18x = 908,402,250,543.17
  5. Step 5: Solve for x
    x = 908,402,250,543.17/942,172.18
  6. Step 6: Final answer
    x = 964,157.37

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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.