Home / 430,025.20-644,807.40-180,425.20

Finding the Fourth Proportional to 430,025.20, 644,807.40 and 180,425.20

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Solution

The fourth proportional to 430,025.20, 644,807.40 and 180,425.20 is: 270,541.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,025.20 : 644,807.40 = 180,425.20 : x
  2. Step 2: Convert to fraction form
    430,025.20/644,807.40 = 180,425.20/x
  3. Step 3: Cross multiply
    430,025.20x = 644,807.40 × 180,425.20
  4. Step 4: Simplify right side
    430,025.20x = 116,339,504,106.48
  5. Step 5: Solve for x
    x = 116,339,504,106.48/430,025.20
  6. Step 6: Final answer
    x = 270,541.13

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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.