Home / 426,529.80-639,807.66-146,043

Finding the Fourth Proportional to 426,529.80, 639,807.66 and 146,043

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Solution

The fourth proportional to 426,529.80, 639,807.66 and 146,043 is: 219,068.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,529.80 : 639,807.66 = 146,043 : x
  2. Step 2: Convert to fraction form
    426,529.80/639,807.66 = 146,043/x
  3. Step 3: Cross multiply
    426,529.80x = 639,807.66 × 146,043
  4. Step 4: Simplify right side
    426,529.80x = 93,439,430,089.38
  5. Step 5: Solve for x
    x = 93,439,430,089.38/426,529.80
  6. Step 6: Final answer
    x = 219,068.94

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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.