Home / 1,311,702.52-1,810,278.60-767,805.34

Finding the Fourth Proportional to 1,311,702.52, 1,810,278.60 and 767,805.34

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Solution

The fourth proportional to 1,311,702.52, 1,810,278.60 and 767,805.34 is: 1,059,646.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,702.52 : 1,810,278.60 = 767,805.34 : x
  2. Step 2: Convert to fraction form
    1,311,702.52/1,810,278.60 = 767,805.34/x
  3. Step 3: Cross multiply
    1,311,702.52x = 1,810,278.60 × 767,805.34
  4. Step 4: Simplify right side
    1,311,702.52x = 1,389,941,575,967.72
  5. Step 5: Solve for x
    x = 1,389,941,575,967.72/1,311,702.52
  6. Step 6: Final answer
    x = 1,059,646.95

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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.