Home / 905,488.22-1,249,301.25-542,779.73

Finding the Fourth Proportional to 905,488.22, 1,249,301.25 and 542,779.73

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Solution

The fourth proportional to 905,488.22, 1,249,301.25 and 542,779.73 is: 748,872.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,488.22 : 1,249,301.25 = 542,779.73 : x
  2. Step 2: Convert to fraction form
    905,488.22/1,249,301.25 = 542,779.73/x
  3. Step 3: Cross multiply
    905,488.22x = 1,249,301.25 × 542,779.73
  4. Step 4: Simplify right side
    905,488.22x = 678,095,399,102.79
  5. Step 5: Solve for x
    x = 678,095,399,102.79/905,488.22
  6. Step 6: Final answer
    x = 748,872.69

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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.