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Finding the Fourth Proportional to 608,924.40, 913,386.60 and 409,858.80

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Solution

The fourth proportional to 608,924.40, 913,386.60 and 409,858.80 is: 614,788.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,924.40 : 913,386.60 = 409,858.80 : x
  2. Step 2: Convert to fraction form
    608,924.40/913,386.60 = 409,858.80/x
  3. Step 3: Cross multiply
    608,924.40x = 913,386.60 × 409,858.80
  4. Step 4: Simplify right side
    608,924.40x = 374,359,535,812.08
  5. Step 5: Solve for x
    x = 374,359,535,812.08/608,924.40
  6. Step 6: Final answer
    x = 614,788.20

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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.