Home / 918,034.20-1,374,329.70-682,421.40

Finding the Fourth Proportional to 918,034.20, 1,374,329.70 and 682,421.40

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Solution

The fourth proportional to 918,034.20, 1,374,329.70 and 682,421.40 is: 1,021,609.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,034.20 : 1,374,329.70 = 682,421.40 : x
  2. Step 2: Convert to fraction form
    918,034.20/1,374,329.70 = 682,421.40/x
  3. Step 3: Cross multiply
    918,034.20x = 1,374,329.70 × 682,421.40
  4. Step 4: Simplify right side
    918,034.20x = 937,871,997,935.58
  5. Step 5: Solve for x
    x = 937,871,997,935.58/918,034.20
  6. Step 6: Final answer
    x = 1,021,609.00

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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.