Home / 1,217,311.20-1,827,464.40-768,031.20

Finding the Fourth Proportional to 1,217,311.20, 1,827,464.40 and 768,031.20

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Solution

The fourth proportional to 1,217,311.20, 1,827,464.40 and 768,031.20 is: 1,152,991.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,311.20 : 1,827,464.40 = 768,031.20 : x
  2. Step 2: Convert to fraction form
    1,217,311.20/1,827,464.40 = 768,031.20/x
  3. Step 3: Cross multiply
    1,217,311.20x = 1,827,464.40 × 768,031.20
  4. Step 4: Simplify right side
    1,217,311.20x = 1,403,549,676,089.28
  5. Step 5: Solve for x
    x = 1,403,549,676,089.28/1,217,311.20
  6. Step 6: Final answer
    x = 1,152,991.67

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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.