Home / 1,580,630.80-2,363,947.80-1,328,688.40

Finding the Fourth Proportional to 1,580,630.80, 2,363,947.80 and 1,328,688.40

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Solution

The fourth proportional to 1,580,630.80, 2,363,947.80 and 1,328,688.40 is: 1,987,149.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,580,630.80 : 2,363,947.80 = 1,328,688.40 : x
  2. Step 2: Convert to fraction form
    1,580,630.80/2,363,947.80 = 1,328,688.40/x
  3. Step 3: Cross multiply
    1,580,630.80x = 2,363,947.80 × 1,328,688.40
  4. Step 4: Simplify right side
    1,580,630.80x = 3,140,950,020,065.52
  5. Step 5: Solve for x
    x = 3,140,950,020,065.52/1,580,630.80
  6. Step 6: Final answer
    x = 1,987,149.70

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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.