Home / 1,530,579.12-2,112,218.63-842,330.22

Finding the Fourth Proportional to 1,530,579.12, 2,112,218.63 and 842,330.22

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Solution

The fourth proportional to 1,530,579.12, 2,112,218.63 and 842,330.22 is: 1,162,426.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530,579.12 : 2,112,218.63 = 842,330.22 : x
  2. Step 2: Convert to fraction form
    1,530,579.12/2,112,218.63 = 842,330.22/x
  3. Step 3: Cross multiply
    1,530,579.12x = 2,112,218.63 × 842,330.22
  4. Step 4: Simplify right side
    1,530,579.12x = 1,779,185,579,084.35
  5. Step 5: Solve for x
    x = 1,779,185,579,084.35/1,530,579.12
  6. Step 6: Final answer
    x = 1,162,426.40

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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.