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Finding the Fourth Proportional to 606,986.90, 910,480.35 and 418,030.10

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Solution

The fourth proportional to 606,986.90, 910,480.35 and 418,030.10 is: 627,045.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,986.90 : 910,480.35 = 418,030.10 : x
  2. Step 2: Convert to fraction form
    606,986.90/910,480.35 = 418,030.10/x
  3. Step 3: Cross multiply
    606,986.90x = 910,480.35 × 418,030.10
  4. Step 4: Simplify right side
    606,986.90x = 380,608,191,758.54
  5. Step 5: Solve for x
    x = 380,608,191,758.54/606,986.90
  6. Step 6: Final answer
    x = 627,045.15

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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.