Home / 1,270,516.76-1,905,370.56-417,390.40

Finding the Fourth Proportional to 1,270,516.76, 1,905,370.56 and 417,390.40

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Solution

The fourth proportional to 1,270,516.76, 1,905,370.56 and 417,390.40 is: 625,952.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,516.76 : 1,905,370.56 = 417,390.40 : x
  2. Step 2: Convert to fraction form
    1,270,516.76/1,905,370.56 = 417,390.40/x
  3. Step 3: Cross multiply
    1,270,516.76x = 1,905,370.56 × 417,390.40
  4. Step 4: Simplify right side
    1,270,516.76x = 795,283,380,186.62
  5. Step 5: Solve for x
    x = 795,283,380,186.62/1,270,516.76
  6. Step 6: Final answer
    x = 625,952.69

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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.