Home / 876,420.30-1,314,705.71-307,752.51

Finding the Fourth Proportional to 876,420.30, 1,314,705.71 and 307,752.51

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Solution

The fourth proportional to 876,420.30, 1,314,705.71 and 307,752.51 is: 461,655.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,420.30 : 1,314,705.71 = 307,752.51 : x
  2. Step 2: Convert to fraction form
    876,420.30/1,314,705.71 = 307,752.51/x
  3. Step 3: Cross multiply
    876,420.30x = 1,314,705.71 × 307,752.51
  4. Step 4: Simplify right side
    876,420.30x = 404,603,980,625.07
  5. Step 5: Solve for x
    x = 404,603,980,625.07/876,420.30
  6. Step 6: Final answer
    x = 461,655.19

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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.