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Finding the Fourth Proportional to 616,118.40, 922,622.40 and 404,611.20

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Solution

The fourth proportional to 616,118.40, 922,622.40 and 404,611.20 is: 605,895.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,118.40 : 922,622.40 = 404,611.20 : x
  2. Step 2: Convert to fraction form
    616,118.40/922,622.40 = 404,611.20/x
  3. Step 3: Cross multiply
    616,118.40x = 922,622.40 × 404,611.20
  4. Step 4: Simplify right side
    616,118.40x = 373,303,356,410.88
  5. Step 5: Solve for x
    x = 373,303,356,410.88/616,118.40
  6. Step 6: Final answer
    x = 605,895.48

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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.