Home / 876,388.80-1,314,583.20-434,020.80

Finding the Fourth Proportional to 876,388.80, 1,314,583.20 and 434,020.80

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Solution

The fourth proportional to 876,388.80, 1,314,583.20 and 434,020.80 is: 651,031.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,388.80 : 1,314,583.20 = 434,020.80 : x
  2. Step 2: Convert to fraction form
    876,388.80/1,314,583.20 = 434,020.80/x
  3. Step 3: Cross multiply
    876,388.80x = 1,314,583.20 × 434,020.80
  4. Step 4: Simplify right side
    876,388.80x = 570,556,452,130.56
  5. Step 5: Solve for x
    x = 570,556,452,130.56/876,388.80
  6. Step 6: Final answer
    x = 651,031.20

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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.