Home / 1,275,447.12-1,913,280.84-328,809.84

Finding the Fourth Proportional to 1,275,447.12, 1,913,280.84 and 328,809.84

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Solution

The fourth proportional to 1,275,447.12, 1,913,280.84 and 328,809.84 is: 493,243.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,447.12 : 1,913,280.84 = 328,809.84 : x
  2. Step 2: Convert to fraction form
    1,275,447.12/1,913,280.84 = 328,809.84/x
  3. Step 3: Cross multiply
    1,275,447.12x = 1,913,280.84 × 328,809.84
  4. Step 4: Simplify right side
    1,275,447.12x = 629,105,566,875.47
  5. Step 5: Solve for x
    x = 629,105,566,875.47/1,275,447.12
  6. Step 6: Final answer
    x = 493,243.16

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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.