Home / 1,530,830.85-2,112,467.79-842,568.06

Finding the Fourth Proportional to 1,530,830.85, 2,112,467.79 and 842,568.06

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Solution

The fourth proportional to 1,530,830.85, 2,112,467.79 and 842,568.06 is: 1,162,700.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530,830.85 : 2,112,467.79 = 842,568.06 : x
  2. Step 2: Convert to fraction form
    1,530,830.85/2,112,467.79 = 842,568.06/x
  3. Step 3: Cross multiply
    1,530,830.85x = 2,112,467.79 × 842,568.06
  4. Step 4: Simplify right side
    1,530,830.85x = 1,779,897,887,632.79
  5. Step 5: Solve for x
    x = 1,779,897,887,632.79/1,530,830.85
  6. Step 6: Final answer
    x = 1,162,700.56

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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.