Home / 1,530,555.83-2,115,080.12-1,147,918.31

Finding the Fourth Proportional to 1,530,555.83, 2,115,080.12 and 1,147,918.31

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Solution

The fourth proportional to 1,530,555.83, 2,115,080.12 and 1,147,918.31 is: 1,586,312.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530,555.83 : 2,115,080.12 = 1,147,918.31 : x
  2. Step 2: Convert to fraction form
    1,530,555.83/2,115,080.12 = 1,147,918.31/x
  3. Step 3: Cross multiply
    1,530,555.83x = 2,115,080.12 × 1,147,918.31
  4. Step 4: Simplify right side
    1,530,555.83x = 2,427,939,189,159.39
  5. Step 5: Solve for x
    x = 2,427,939,189,159.39/1,530,555.83
  6. Step 6: Final answer
    x = 1,586,312.08

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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.