Home / 1,385,989.03-1,912,644.55-774,150.63

Finding the Fourth Proportional to 1,385,989.03, 1,912,644.55 and 774,150.63

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Solution

The fourth proportional to 1,385,989.03, 1,912,644.55 and 774,150.63 is: 1,068,316.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,989.03 : 1,912,644.55 = 774,150.63 : x
  2. Step 2: Convert to fraction form
    1,385,989.03/1,912,644.55 = 774,150.63/x
  3. Step 3: Cross multiply
    1,385,989.03x = 1,912,644.55 × 774,150.63
  4. Step 4: Simplify right side
    1,385,989.03x = 1,480,674,983,547.87
  5. Step 5: Solve for x
    x = 1,480,674,983,547.87/1,385,989.03
  6. Step 6: Final answer
    x = 1,068,316.53

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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.