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Finding the Fourth Proportional to 401,146.90, 600,364.06 and 390,352.08

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Solution

The fourth proportional to 401,146.90, 600,364.06 and 390,352.08 is: 584,208.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,146.90 : 600,364.06 = 390,352.08 : x
  2. Step 2: Convert to fraction form
    401,146.90/600,364.06 = 390,352.08/x
  3. Step 3: Cross multiply
    401,146.90x = 600,364.06 × 390,352.08
  4. Step 4: Simplify right side
    401,146.90x = 234,353,359,578.25
  5. Step 5: Solve for x
    x = 234,353,359,578.25/401,146.90
  6. Step 6: Final answer
    x = 584,208.33

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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.