Home / 1,385,460.17-1,913,255.60-1,309,979.97

Finding the Fourth Proportional to 1,385,460.17, 1,913,255.60 and 1,309,979.97

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Solution

The fourth proportional to 1,385,460.17, 1,913,255.60 and 1,309,979.97 is: 1,809,020.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,460.17 : 1,913,255.60 = 1,309,979.97 : x
  2. Step 2: Convert to fraction form
    1,385,460.17/1,913,255.60 = 1,309,979.97/x
  3. Step 3: Cross multiply
    1,385,460.17x = 1,913,255.60 × 1,309,979.97
  4. Step 4: Simplify right side
    1,385,460.17x = 2,506,326,510,770.26
  5. Step 5: Solve for x
    x = 2,506,326,510,770.26/1,385,460.17
  6. Step 6: Final answer
    x = 1,809,020.98

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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.