Home / 648,427.20-972,410.40-293,611.20

Finding the Fourth Proportional to 648,427.20, 972,410.40 and 293,611.20

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Solution

The fourth proportional to 648,427.20, 972,410.40 and 293,611.20 is: 440,312.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,427.20 : 972,410.40 = 293,611.20 : x
  2. Step 2: Convert to fraction form
    648,427.20/972,410.40 = 293,611.20/x
  3. Step 3: Cross multiply
    648,427.20x = 972,410.40 × 293,611.20
  4. Step 4: Simplify right side
    648,427.20x = 285,510,584,436.48
  5. Step 5: Solve for x
    x = 285,510,584,436.48/648,427.20
  6. Step 6: Final answer
    x = 440,312.47

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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.