Home / 1,421,665.14-2,132,871.09-510,939.51

Finding the Fourth Proportional to 1,421,665.14, 2,132,871.09 and 510,939.51

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Solution

The fourth proportional to 1,421,665.14, 2,132,871.09 and 510,939.51 is: 766,543.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,665.14 : 2,132,871.09 = 510,939.51 : x
  2. Step 2: Convert to fraction form
    1,421,665.14/2,132,871.09 = 510,939.51/x
  3. Step 3: Cross multiply
    1,421,665.14x = 2,132,871.09 × 510,939.51
  4. Step 4: Simplify right side
    1,421,665.14x = 1,089,768,109,617.77
  5. Step 5: Solve for x
    x = 1,089,768,109,617.77/1,421,665.14
  6. Step 6: Final answer
    x = 766,543.46

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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.