Home / 909,543.69-1,365,261.80-669,928.17

Finding the Fourth Proportional to 909,543.69, 1,365,261.80 and 669,928.17

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Solution

The fourth proportional to 909,543.69, 1,365,261.80 and 669,928.17 is: 1,005,589.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,543.69 : 1,365,261.80 = 669,928.17 : x
  2. Step 2: Convert to fraction form
    909,543.69/1,365,261.80 = 669,928.17/x
  3. Step 3: Cross multiply
    909,543.69x = 1,365,261.80 × 669,928.17
  4. Step 4: Simplify right side
    909,543.69x = 914,627,335,895.27
  5. Step 5: Solve for x
    x = 914,627,335,895.27/909,543.69
  6. Step 6: Final answer
    x = 1,005,589.23

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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.