Home / 742,701.15-1,024,930.67-420,473.43

Finding the Fourth Proportional to 742,701.15, 1,024,930.67 and 420,473.43

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Solution

The fourth proportional to 742,701.15, 1,024,930.67 and 420,473.43 is: 580,255.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,701.15 : 1,024,930.67 = 420,473.43 : x
  2. Step 2: Convert to fraction form
    742,701.15/1,024,930.67 = 420,473.43/x
  3. Step 3: Cross multiply
    742,701.15x = 1,024,930.67 × 420,473.43
  4. Step 4: Simplify right side
    742,701.15x = 430,956,112,224.73
  5. Step 5: Solve for x
    x = 430,956,112,224.73/742,701.15
  6. Step 6: Final answer
    x = 580,255.08

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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.