Home / 1,291,749.40-1,935,780.90-952,139.80

Finding the Fourth Proportional to 1,291,749.40, 1,935,780.90 and 952,139.80

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Solution

The fourth proportional to 1,291,749.40, 1,935,780.90 and 952,139.80 is: 1,426,851.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,749.40 : 1,935,780.90 = 952,139.80 : x
  2. Step 2: Convert to fraction form
    1,291,749.40/1,935,780.90 = 952,139.80/x
  3. Step 3: Cross multiply
    1,291,749.40x = 1,935,780.90 × 952,139.80
  4. Step 4: Simplify right side
    1,291,749.40x = 1,843,134,038,969.82
  5. Step 5: Solve for x
    x = 1,843,134,038,969.82/1,291,749.40
  6. Step 6: Final answer
    x = 1,426,851.09

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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.