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Finding the Fourth Proportional to 604,610.40, 906,915.60 and 155,330.40

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Solution

The fourth proportional to 604,610.40, 906,915.60 and 155,330.40 is: 232,995.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,610.40 : 906,915.60 = 155,330.40 : x
  2. Step 2: Convert to fraction form
    604,610.40/906,915.60 = 155,330.40/x
  3. Step 3: Cross multiply
    604,610.40x = 906,915.60 × 155,330.40
  4. Step 4: Simplify right side
    604,610.40x = 140,871,562,914.24
  5. Step 5: Solve for x
    x = 140,871,562,914.24/604,610.40
  6. Step 6: Final answer
    x = 232,995.60

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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.