Home / 430,439.87-594,732.78-309,340.22

Finding the Fourth Proportional to 430,439.87, 594,732.78 and 309,340.22

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Solution

The fourth proportional to 430,439.87, 594,732.78 and 309,340.22 is: 427,411.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,439.87 : 594,732.78 = 309,340.22 : x
  2. Step 2: Convert to fraction form
    430,439.87/594,732.78 = 309,340.22/x
  3. Step 3: Cross multiply
    430,439.87x = 594,732.78 × 309,340.22
  4. Step 4: Simplify right side
    430,439.87x = 183,974,766,032.75
  5. Step 5: Solve for x
    x = 183,974,766,032.75/430,439.87
  6. Step 6: Final answer
    x = 427,411.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.