Home / 1,555,522-2,146,621.17-840,130

Finding the Fourth Proportional to 1,555,522, 2,146,621.17 and 840,130

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Solution

The fourth proportional to 1,555,522, 2,146,621.17 and 840,130 is: 1,159,379.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,522 : 2,146,621.17 = 840,130 : x
  2. Step 2: Convert to fraction form
    1,555,522/2,146,621.17 = 840,130/x
  3. Step 3: Cross multiply
    1,555,522x = 2,146,621.17 × 840,130
  4. Step 4: Simplify right side
    1,555,522x = 1,803,440,843,552.10
  5. Step 5: Solve for x
    x = 1,803,440,843,552.10/1,555,522
  6. Step 6: Final answer
    x = 1,159,379.84

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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.