Home / 877,983.78-1,316,071.71-345,288.90

Finding the Fourth Proportional to 877,983.78, 1,316,071.71 and 345,288.90

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Solution

The fourth proportional to 877,983.78, 1,316,071.71 and 345,288.90 is: 517,577.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,983.78 : 1,316,071.71 = 345,288.90 : x
  2. Step 2: Convert to fraction form
    877,983.78/1,316,071.71 = 345,288.90/x
  3. Step 3: Cross multiply
    877,983.78x = 1,316,071.71 × 345,288.90
  4. Step 4: Simplify right side
    877,983.78x = 454,424,953,067.02
  5. Step 5: Solve for x
    x = 454,424,953,067.02/877,983.78
  6. Step 6: Final answer
    x = 517,577.85

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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.