Home / 1,555,445-2,146,514.10-840,053

Finding the Fourth Proportional to 1,555,445, 2,146,514.10 and 840,053

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Solution

The fourth proportional to 1,555,445, 2,146,514.10 and 840,053 is: 1,159,273.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,445 : 2,146,514.10 = 840,053 : x
  2. Step 2: Convert to fraction form
    1,555,445/2,146,514.10 = 840,053/x
  3. Step 3: Cross multiply
    1,555,445x = 2,146,514.10 × 840,053
  4. Step 4: Simplify right side
    1,555,445x = 1,803,185,609,247.30
  5. Step 5: Solve for x
    x = 1,803,185,609,247.30/1,555,445
  6. Step 6: Final answer
    x = 1,159,273.14

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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.