Home / 818,089.95-1,227,218.73-313,075.68

Finding the Fourth Proportional to 818,089.95, 1,227,218.73 and 313,075.68

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Solution

The fourth proportional to 818,089.95, 1,227,218.73 and 313,075.68 is: 469,645.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,089.95 : 1,227,218.73 = 313,075.68 : x
  2. Step 2: Convert to fraction form
    818,089.95/1,227,218.73 = 313,075.68/x
  3. Step 3: Cross multiply
    818,089.95x = 1,227,218.73 × 313,075.68
  4. Step 4: Simplify right side
    818,089.95x = 384,212,332,267.39
  5. Step 5: Solve for x
    x = 384,212,332,267.39/818,089.95
  6. Step 6: Final answer
    x = 469,645.58

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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.