Home / 478,023.51-716,868.09-140,974.68

Finding the Fourth Proportional to 478,023.51, 716,868.09 and 140,974.68

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Solution

The fourth proportional to 478,023.51, 716,868.09 and 140,974.68 is: 211,412.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,023.51 : 716,868.09 = 140,974.68 : x
  2. Step 2: Convert to fraction form
    478,023.51/716,868.09 = 140,974.68/x
  3. Step 3: Cross multiply
    478,023.51x = 716,868.09 × 140,974.68
  4. Step 4: Simplify right side
    478,023.51x = 101,060,249,589.96
  5. Step 5: Solve for x
    x = 101,060,249,589.96/478,023.51
  6. Step 6: Final answer
    x = 211,412.72

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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.