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Finding the Fourth Proportional to 518,798.40, 777,621.60 and 203,150.40

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Solution

The fourth proportional to 518,798.40, 777,621.60 and 203,150.40 is: 304,500.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,798.40 : 777,621.60 = 203,150.40 : x
  2. Step 2: Convert to fraction form
    518,798.40/777,621.60 = 203,150.40/x
  3. Step 3: Cross multiply
    518,798.40x = 777,621.60 × 203,150.40
  4. Step 4: Simplify right side
    518,798.40x = 157,974,139,088.64
  5. Step 5: Solve for x
    x = 157,974,139,088.64/518,798.40
  6. Step 6: Final answer
    x = 304,500.05

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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.