Home / 539,026.20-808,541.70-139,638.60

Finding the Fourth Proportional to 539,026.20, 808,541.70 and 139,638.60

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Solution

The fourth proportional to 539,026.20, 808,541.70 and 139,638.60 is: 209,458.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,026.20 : 808,541.70 = 139,638.60 : x
  2. Step 2: Convert to fraction form
    539,026.20/808,541.70 = 139,638.60/x
  3. Step 3: Cross multiply
    539,026.20x = 808,541.70 × 139,638.60
  4. Step 4: Simplify right side
    539,026.20x = 112,903,631,029.62
  5. Step 5: Solve for x
    x = 112,903,631,029.62/539,026.20
  6. Step 6: Final answer
    x = 209,458.52

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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.