Home / 740,409.42-1,021,833.48-449,953.95

Finding the Fourth Proportional to 740,409.42, 1,021,833.48 and 449,953.95

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Solution

The fourth proportional to 740,409.42, 1,021,833.48 and 449,953.95 is: 620,978.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,409.42 : 1,021,833.48 = 449,953.95 : x
  2. Step 2: Convert to fraction form
    740,409.42/1,021,833.48 = 449,953.95/x
  3. Step 3: Cross multiply
    740,409.42x = 1,021,833.48 × 449,953.95
  4. Step 4: Simplify right side
    740,409.42x = 459,778,016,087.45
  5. Step 5: Solve for x
    x = 459,778,016,087.45/740,409.42
  6. Step 6: Final answer
    x = 620,978.07

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1.5x scale

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.