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Finding the Fourth Proportional to 608,068.40, 912,102.60 and 409,002.80

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Solution

The fourth proportional to 608,068.40, 912,102.60 and 409,002.80 is: 613,504.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,068.40 : 912,102.60 = 409,002.80 : x
  2. Step 2: Convert to fraction form
    608,068.40/912,102.60 = 409,002.80/x
  3. Step 3: Cross multiply
    608,068.40x = 912,102.60 × 409,002.80
  4. Step 4: Simplify right side
    608,068.40x = 373,052,517,287.28
  5. Step 5: Solve for x
    x = 373,052,517,287.28/608,068.40
  6. Step 6: Final answer
    x = 613,504.20

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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.