Home / 850,501.40-1,276,001.28-251,478.15

Finding the Fourth Proportional to 850,501.40, 1,276,001.28 and 251,478.15

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Solution

The fourth proportional to 850,501.40, 1,276,001.28 and 251,478.15 is: 377,290.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,501.40 : 1,276,001.28 = 251,478.15 : x
  2. Step 2: Convert to fraction form
    850,501.40/1,276,001.28 = 251,478.15/x
  3. Step 3: Cross multiply
    850,501.40x = 1,276,001.28 × 251,478.15
  4. Step 4: Simplify right side
    850,501.40x = 320,886,441,292.03
  5. Step 5: Solve for x
    x = 320,886,441,292.03/850,501.40
  6. Step 6: Final answer
    x = 377,290.91

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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.