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Finding the Fourth Proportional to 404,871.20, 607,200.60 and 120,485.24

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Solution

The fourth proportional to 404,871.20, 607,200.60 and 120,485.24 is: 180,696.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,871.20 : 607,200.60 = 120,485.24 : x
  2. Step 2: Convert to fraction form
    404,871.20/607,200.60 = 120,485.24/x
  3. Step 3: Cross multiply
    404,871.20x = 607,200.60 × 120,485.24
  4. Step 4: Simplify right side
    404,871.20x = 73,158,710,019.14
  5. Step 5: Solve for x
    x = 73,158,710,019.14/404,871.20
  6. Step 6: Final answer
    x = 180,696.26

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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.