Home / 1,020,149.87-1,530,034.50-412,779

Finding the Fourth Proportional to 1,020,149.87, 1,530,034.50 and 412,779

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Solution

The fourth proportional to 1,020,149.87, 1,530,034.50 and 412,779 is: 619,091.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,149.87 : 1,530,034.50 = 412,779 : x
  2. Step 2: Convert to fraction form
    1,020,149.87/1,530,034.50 = 412,779/x
  3. Step 3: Cross multiply
    1,020,149.87x = 1,530,034.50 × 412,779
  4. Step 4: Simplify right side
    1,020,149.87x = 631,566,110,875.50
  5. Step 5: Solve for x
    x = 631,566,110,875.50/1,020,149.87
  6. Step 6: Final answer
    x = 619,091.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.