Home / 740,410.42-1,021,834.86-449,954.95

Finding the Fourth Proportional to 740,410.42, 1,021,834.86 and 449,954.95

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Solution

The fourth proportional to 740,410.42, 1,021,834.86 and 449,954.95 is: 620,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,410.42 : 1,021,834.86 = 449,954.95 : x
  2. Step 2: Convert to fraction form
    740,410.42/1,021,834.86 = 449,954.95/x
  3. Step 3: Cross multiply
    740,410.42x = 1,021,834.86 × 449,954.95
  4. Step 4: Simplify right side
    740,410.42x = 459,779,653,339.56
  5. Step 5: Solve for x
    x = 459,779,653,339.56/740,410.42
  6. Step 6: Final answer
    x = 620,979.45

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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.