Home / 1,385,990.03-1,912,645.93-774,151.63

Finding the Fourth Proportional to 1,385,990.03, 1,912,645.93 and 774,151.63

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Solution

The fourth proportional to 1,385,990.03, 1,912,645.93 and 774,151.63 is: 1,068,317.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,990.03 : 1,912,645.93 = 774,151.63 : x
  2. Step 2: Convert to fraction form
    1,385,990.03/1,912,645.93 = 774,151.63/x
  3. Step 3: Cross multiply
    1,385,990.03x = 1,912,645.93 × 774,151.63
  4. Step 4: Simplify right side
    1,385,990.03x = 1,480,677,964,322.37
  5. Step 5: Solve for x
    x = 1,480,677,964,322.37/1,385,990.03
  6. Step 6: Final answer
    x = 1,068,317.90

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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.