Home / 779,886.78-1,169,830.14-281,250.78

Finding the Fourth Proportional to 779,886.78, 1,169,830.14 and 281,250.78

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Solution

The fourth proportional to 779,886.78, 1,169,830.14 and 281,250.78 is: 421,876.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,886.78 : 1,169,830.14 = 281,250.78 : x
  2. Step 2: Convert to fraction form
    779,886.78/1,169,830.14 = 281,250.78/x
  3. Step 3: Cross multiply
    779,886.78x = 1,169,830.14 × 281,250.78
  4. Step 4: Simplify right side
    779,886.78x = 329,015,639,342.51
  5. Step 5: Solve for x
    x = 329,015,639,342.51/779,886.78
  6. Step 6: Final answer
    x = 421,876.16

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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.