Home / 909,539.40-1,365,255.38-669,923.86

Finding the Fourth Proportional to 909,539.40, 1,365,255.38 and 669,923.86

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Solution

The fourth proportional to 909,539.40, 1,365,255.38 and 669,923.86 is: 1,005,582.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,539.40 : 1,365,255.38 = 669,923.86 : x
  2. Step 2: Convert to fraction form
    909,539.40/1,365,255.38 = 669,923.86/x
  3. Step 3: Cross multiply
    909,539.40x = 1,365,255.38 × 669,923.86
  4. Step 4: Simplify right side
    909,539.40x = 914,617,154,055.37
  5. Step 5: Solve for x
    x = 914,617,154,055.37/909,539.40
  6. Step 6: Final answer
    x = 1,005,582.78

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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.