Home / 1,421,638.08-2,132,831.04-510,912.56

Finding the Fourth Proportional to 1,421,638.08, 2,132,831.04 and 510,912.56

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Solution

The fourth proportional to 1,421,638.08, 2,132,831.04 and 510,912.56 is: 766,503.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,638.08 : 2,132,831.04 = 510,912.56 : x
  2. Step 2: Convert to fraction form
    1,421,638.08/2,132,831.04 = 510,912.56/x
  3. Step 3: Cross multiply
    1,421,638.08x = 2,132,831.04 × 510,912.56
  4. Step 4: Simplify right side
    1,421,638.08x = 1,089,690,166,693.86
  5. Step 5: Solve for x
    x = 1,089,690,166,693.86/1,421,638.08
  6. Step 6: Final answer
    x = 766,503.22

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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.