Home / 709,722.46-976,931.03-618,918.22

Finding the Fourth Proportional to 709,722.46, 976,931.03 and 618,918.22

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Solution

The fourth proportional to 709,722.46, 976,931.03 and 618,918.22 is: 851,939.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,722.46 : 976,931.03 = 618,918.22 : x
  2. Step 2: Convert to fraction form
    709,722.46/976,931.03 = 618,918.22/x
  3. Step 3: Cross multiply
    709,722.46x = 976,931.03 × 618,918.22
  4. Step 4: Simplify right side
    709,722.46x = 604,640,414,150.37
  5. Step 5: Solve for x
    x = 604,640,414,150.37/709,722.46
  6. Step 6: Final answer
    x = 851,939.24

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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.