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Finding the Fourth Proportional to 518,464.80, 777,601.20 and 144,410.40

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Solution

The fourth proportional to 518,464.80, 777,601.20 and 144,410.40 is: 216,588.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,464.80 : 777,601.20 = 144,410.40 : x
  2. Step 2: Convert to fraction form
    518,464.80/777,601.20 = 144,410.40/x
  3. Step 3: Cross multiply
    518,464.80x = 777,601.20 × 144,410.40
  4. Step 4: Simplify right side
    518,464.80x = 112,293,700,332.48
  5. Step 5: Solve for x
    x = 112,293,700,332.48/518,464.80
  6. Step 6: Final answer
    x = 216,588.86

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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.