Home / 558,419.70-837,629.61-390,268.44

Finding the Fourth Proportional to 558,419.70, 837,629.61 and 390,268.44

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Solution

The fourth proportional to 558,419.70, 837,629.61 and 390,268.44 is: 585,402.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,419.70 : 837,629.61 = 390,268.44 : x
  2. Step 2: Convert to fraction form
    558,419.70/837,629.61 = 390,268.44/x
  3. Step 3: Cross multiply
    558,419.70x = 837,629.61 × 390,268.44
  4. Step 4: Simplify right side
    558,419.70x = 326,900,401,192.51
  5. Step 5: Solve for x
    x = 326,900,401,192.51/558,419.70
  6. Step 6: Final answer
    x = 585,402.70

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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.