Home / 1,555,443-2,146,511.34-840,051

Finding the Fourth Proportional to 1,555,443, 2,146,511.34 and 840,051

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Solution

The fourth proportional to 1,555,443, 2,146,511.34 and 840,051 is: 1,159,270.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,443 : 2,146,511.34 = 840,051 : x
  2. Step 2: Convert to fraction form
    1,555,443/2,146,511.34 = 840,051/x
  3. Step 3: Cross multiply
    1,555,443x = 2,146,511.34 × 840,051
  4. Step 4: Simplify right side
    1,555,443x = 1,803,178,997,678.34
  5. Step 5: Solve for x
    x = 1,803,178,997,678.34/1,555,443
  6. Step 6: Final answer
    x = 1,159,270.38

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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.