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Finding the Fourth Proportional to 869,559.73, 1,200,004.86 and 525,347.80

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Solution

The fourth proportional to 869,559.73, 1,200,004.86 and 525,347.80 is: 724,987.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,559.73 : 1,200,004.86 = 525,347.80 : x
  2. Step 2: Convert to fraction form
    869,559.73/1,200,004.86 = 525,347.80/x
  3. Step 3: Cross multiply
    869,559.73x = 1,200,004.86 × 525,347.80
  4. Step 4: Simplify right side
    869,559.73x = 630,419,904,563.55
  5. Step 5: Solve for x
    x = 630,419,904,563.55/869,559.73
  6. Step 6: Final answer
    x = 724,987.47

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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.