Home / 992,518.95-1,489,390.80-459,940.71

Finding the Fourth Proportional to 992,518.95, 1,489,390.80 and 459,940.71

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Solution

The fourth proportional to 992,518.95, 1,489,390.80 and 459,940.71 is: 690,194.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,518.95 : 1,489,390.80 = 459,940.71 : x
  2. Step 2: Convert to fraction form
    992,518.95/1,489,390.80 = 459,940.71/x
  3. Step 3: Cross multiply
    992,518.95x = 1,489,390.80 × 459,940.71
  4. Step 4: Simplify right side
    992,518.95x = 685,031,462,019.47
  5. Step 5: Solve for x
    x = 685,031,462,019.47/992,518.95
  6. Step 6: Final answer
    x = 690,194.84

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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.