Home / 1,267,790.52-1,901,685.76-768,104.76

Finding the Fourth Proportional to 1,267,790.52, 1,901,685.76 and 768,104.76

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Solution

The fourth proportional to 1,267,790.52, 1,901,685.76 and 768,104.76 is: 1,152,157.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,790.52 : 1,901,685.76 = 768,104.76 : x
  2. Step 2: Convert to fraction form
    1,267,790.52/1,901,685.76 = 768,104.76/x
  3. Step 3: Cross multiply
    1,267,790.52x = 1,901,685.76 × 768,104.76
  4. Step 4: Simplify right side
    1,267,790.52x = 1,460,693,884,280.22
  5. Step 5: Solve for x
    x = 1,460,693,884,280.22/1,267,790.52
  6. Step 6: Final answer
    x = 1,152,157.13

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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.