Home / 1,275,475.90-1,913,323.98-328,838.62

Finding the Fourth Proportional to 1,275,475.90, 1,913,323.98 and 328,838.62

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Solution

The fourth proportional to 1,275,475.90, 1,913,323.98 and 328,838.62 is: 493,286.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,475.90 : 1,913,323.98 = 328,838.62 : x
  2. Step 2: Convert to fraction form
    1,275,475.90/1,913,323.98 = 328,838.62/x
  3. Step 3: Cross multiply
    1,275,475.90x = 1,913,323.98 × 328,838.62
  4. Step 4: Simplify right side
    1,275,475.90x = 629,174,817,196.11
  5. Step 5: Solve for x
    x = 629,174,817,196.11/1,275,475.90
  6. Step 6: Final answer
    x = 493,286.32

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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.