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Finding the Fourth Proportional to 606,973.20, 910,459.80 and 418,016.40

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Solution

The fourth proportional to 606,973.20, 910,459.80 and 418,016.40 is: 627,024.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,973.20 : 910,459.80 = 418,016.40 : x
  2. Step 2: Convert to fraction form
    606,973.20/910,459.80 = 418,016.40/x
  3. Step 3: Cross multiply
    606,973.20x = 910,459.80 × 418,016.40
  4. Step 4: Simplify right side
    606,973.20x = 380,587,127,940.72
  5. Step 5: Solve for x
    x = 380,587,127,940.72/606,973.20
  6. Step 6: Final answer
    x = 627,024.60

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Similar ratio
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1.5x scale

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.