Home / 1,689,144.95-2,533,717.43-426,972.58

Finding the Fourth Proportional to 1,689,144.95, 2,533,717.43 and 426,972.58

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Solution

The fourth proportional to 1,689,144.95, 2,533,717.43 and 426,972.58 is: 640,458.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,144.95 : 2,533,717.43 = 426,972.58 : x
  2. Step 2: Convert to fraction form
    1,689,144.95/2,533,717.43 = 426,972.58/x
  3. Step 3: Cross multiply
    1,689,144.95x = 2,533,717.43 × 426,972.58
  4. Step 4: Simplify right side
    1,689,144.95x = 1,081,827,861,210.06
  5. Step 5: Solve for x
    x = 1,081,827,861,210.06/1,689,144.95
  6. Step 6: Final answer
    x = 640,458.87

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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.