Home / 876,641.49-1,314,172.76-315,281.25

Finding the Fourth Proportional to 876,641.49, 1,314,172.76 and 315,281.25

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Solution

The fourth proportional to 876,641.49, 1,314,172.76 and 315,281.25 is: 472,637.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,641.49 : 1,314,172.76 = 315,281.25 : x
  2. Step 2: Convert to fraction form
    876,641.49/1,314,172.76 = 315,281.25/x
  3. Step 3: Cross multiply
    876,641.49x = 1,314,172.76 × 315,281.25
  4. Step 4: Simplify right side
    876,641.49x = 414,334,028,912.34
  5. Step 5: Solve for x
    x = 414,334,028,912.34/876,641.49
  6. Step 6: Final answer
    x = 472,637.94

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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.