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Finding the Fourth Proportional to 407,807.20, 610,501.20 and 303,090.40

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Solution

The fourth proportional to 407,807.20, 610,501.20 and 303,090.40 is: 453,736.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,807.20 : 610,501.20 = 303,090.40 : x
  2. Step 2: Convert to fraction form
    407,807.20/610,501.20 = 303,090.40/x
  3. Step 3: Cross multiply
    407,807.20x = 610,501.20 × 303,090.40
  4. Step 4: Simplify right side
    407,807.20x = 185,037,052,908.48
  5. Step 5: Solve for x
    x = 185,037,052,908.48/407,807.20
  6. Step 6: Final answer
    x = 453,736.60

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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.