Home / 1,393,649.55-1,921,200.73-985,030.47

Finding the Fourth Proportional to 1,393,649.55, 1,921,200.73 and 985,030.47

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Solution

The fourth proportional to 1,393,649.55, 1,921,200.73 and 985,030.47 is: 1,357,903.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,649.55 : 1,921,200.73 = 985,030.47 : x
  2. Step 2: Convert to fraction form
    1,393,649.55/1,921,200.73 = 985,030.47/x
  3. Step 3: Cross multiply
    1,393,649.55x = 1,921,200.73 × 985,030.47
  4. Step 4: Simplify right side
    1,393,649.55x = 1,892,441,255,573.67
  5. Step 5: Solve for x
    x = 1,892,441,255,573.67/1,393,649.55
  6. Step 6: Final answer
    x = 1,357,903.25

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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.