Home / 668,043.38-1,002,602.70-380,031.89

Finding the Fourth Proportional to 668,043.38, 1,002,602.70 and 380,031.89

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Solution

The fourth proportional to 668,043.38, 1,002,602.70 and 380,031.89 is: 570,353.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,043.38 : 1,002,602.70 = 380,031.89 : x
  2. Step 2: Convert to fraction form
    668,043.38/1,002,602.70 = 380,031.89/x
  3. Step 3: Cross multiply
    668,043.38x = 1,002,602.70 × 380,031.89
  4. Step 4: Simplify right side
    668,043.38x = 381,020,993,987.09
  5. Step 5: Solve for x
    x = 381,020,993,987.09/668,043.38
  6. Step 6: Final answer
    x = 570,353.67

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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.