Home / 628,318.73-867,075.90-341,840.09

Finding the Fourth Proportional to 628,318.73, 867,075.90 and 341,840.09

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Solution

The fourth proportional to 628,318.73, 867,075.90 and 341,840.09 is: 471,737.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,318.73 : 867,075.90 = 341,840.09 : x
  2. Step 2: Convert to fraction form
    628,318.73/867,075.90 = 341,840.09/x
  3. Step 3: Cross multiply
    628,318.73x = 867,075.90 × 341,840.09
  4. Step 4: Simplify right side
    628,318.73x = 296,401,303,692.83
  5. Step 5: Solve for x
    x = 296,401,303,692.83/628,318.73
  6. Step 6: Final answer
    x = 471,737.18

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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.