Home / 992,486.55-1,488,729.83-519,316.95

Finding the Fourth Proportional to 992,486.55, 1,488,729.83 and 519,316.95

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Solution

The fourth proportional to 992,486.55, 1,488,729.83 and 519,316.95 is: 778,975.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,486.55 : 1,488,729.83 = 519,316.95 : x
  2. Step 2: Convert to fraction form
    992,486.55/1,488,729.83 = 519,316.95/x
  3. Step 3: Cross multiply
    992,486.55x = 1,488,729.83 × 519,316.95
  4. Step 4: Simplify right side
    992,486.55x = 773,122,632,093.03
  5. Step 5: Solve for x
    x = 773,122,632,093.03/992,486.55
  6. Step 6: Final answer
    x = 778,975.43

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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.