Home / 900,826.44-1,243,590.54-518,779.42

Finding the Fourth Proportional to 900,826.44, 1,243,590.54 and 518,779.42

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Solution

The fourth proportional to 900,826.44, 1,243,590.54 and 518,779.42 is: 716,174.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,826.44 : 1,243,590.54 = 518,779.42 : x
  2. Step 2: Convert to fraction form
    900,826.44/1,243,590.54 = 518,779.42/x
  3. Step 3: Cross multiply
    900,826.44x = 1,243,590.54 × 518,779.42
  4. Step 4: Simplify right side
    900,826.44x = 645,149,179,058.69
  5. Step 5: Solve for x
    x = 645,149,179,058.69/900,826.44
  6. Step 6: Final answer
    x = 716,174.78

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1.5x scale

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.