Home / 940,749.16-1,296,948.44-646,389.90

Finding the Fourth Proportional to 940,749.16, 1,296,948.44 and 646,389.90

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Solution

The fourth proportional to 940,749.16, 1,296,948.44 and 646,389.90 is: 891,134.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,749.16 : 1,296,948.44 = 646,389.90 : x
  2. Step 2: Convert to fraction form
    940,749.16/1,296,948.44 = 646,389.90/x
  3. Step 3: Cross multiply
    940,749.16x = 1,296,948.44 × 646,389.90
  4. Step 4: Simplify right side
    940,749.16x = 838,334,372,436.76
  5. Step 5: Solve for x
    x = 838,334,372,436.76/940,749.16
  6. Step 6: Final answer
    x = 891,134.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.