Home / 780,901.98-1,171,394.01-219,980.22

Finding the Fourth Proportional to 780,901.98, 1,171,394.01 and 219,980.22

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Solution

The fourth proportional to 780,901.98, 1,171,394.01 and 219,980.22 is: 329,981.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,901.98 : 1,171,394.01 = 219,980.22 : x
  2. Step 2: Convert to fraction form
    780,901.98/1,171,394.01 = 219,980.22/x
  3. Step 3: Cross multiply
    780,901.98x = 1,171,394.01 × 219,980.22
  4. Step 4: Simplify right side
    780,901.98x = 257,683,512,026.48
  5. Step 5: Solve for x
    x = 257,683,512,026.48/780,901.98
  6. Step 6: Final answer
    x = 329,981.89

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Double scale
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1.5x scale

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.