Home / 850,588.36-1,276,065.60-424,353.40

Finding the Fourth Proportional to 850,588.36, 1,276,065.60 and 424,353.40

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Solution

The fourth proportional to 850,588.36, 1,276,065.60 and 424,353.40 is: 636,621.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,588.36 : 1,276,065.60 = 424,353.40 : x
  2. Step 2: Convert to fraction form
    850,588.36/1,276,065.60 = 424,353.40/x
  3. Step 3: Cross multiply
    850,588.36x = 1,276,065.60 × 424,353.40
  4. Step 4: Simplify right side
    850,588.36x = 541,502,775,983.04
  5. Step 5: Solve for x
    x = 541,502,775,983.04/850,588.36
  6. Step 6: Final answer
    x = 636,621.43

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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.