Home / 1,301,825.40-1,953,890.10-768,679.80

Finding the Fourth Proportional to 1,301,825.40, 1,953,890.10 and 768,679.80

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Solution

The fourth proportional to 1,301,825.40, 1,953,890.10 and 768,679.80 is: 1,153,699.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301,825.40 : 1,953,890.10 = 768,679.80 : x
  2. Step 2: Convert to fraction form
    1,301,825.40/1,953,890.10 = 768,679.80/x
  3. Step 3: Cross multiply
    1,301,825.40x = 1,953,890.10 × 768,679.80
  4. Step 4: Simplify right side
    1,301,825.40x = 1,501,915,851,289.98
  5. Step 5: Solve for x
    x = 1,501,915,851,289.98/1,301,825.40
  6. Step 6: Final answer
    x = 1,153,699.91

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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.