Home / 1,890,873.78-2,609,422.47-1,031,437.86

Finding the Fourth Proportional to 1,890,873.78, 2,609,422.47 and 1,031,437.86

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Solution

The fourth proportional to 1,890,873.78, 2,609,422.47 and 1,031,437.86 is: 1,423,393.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890,873.78 : 2,609,422.47 = 1,031,437.86 : x
  2. Step 2: Convert to fraction form
    1,890,873.78/2,609,422.47 = 1,031,437.86/x
  3. Step 3: Cross multiply
    1,890,873.78x = 2,609,422.47 × 1,031,437.86
  4. Step 4: Simplify right side
    1,890,873.78x = 2,691,457,128,292.71
  5. Step 5: Solve for x
    x = 2,691,457,128,292.71/1,890,873.78
  6. Step 6: Final answer
    x = 1,423,393.33

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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.