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Finding the Fourth Proportional to 899,564.64, 1,348,888.56 and 300,310.56

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Solution

The fourth proportional to 899,564.64, 1,348,888.56 and 300,310.56 is: 450,312.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,564.64 : 1,348,888.56 = 300,310.56 : x
  2. Step 2: Convert to fraction form
    899,564.64/1,348,888.56 = 300,310.56/x
  3. Step 3: Cross multiply
    899,564.64x = 1,348,888.56 × 300,310.56
  4. Step 4: Simplify right side
    899,564.64x = 405,085,478,831.19
  5. Step 5: Solve for x
    x = 405,085,478,831.19/899,564.64
  6. Step 6: Final answer
    x = 450,312.81

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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.