Home / 1,530,166.20-2,291,750.10-781,337.40

Finding the Fourth Proportional to 1,530,166.20, 2,291,750.10 and 781,337.40

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Solution

The fourth proportional to 1,530,166.20, 2,291,750.10 and 781,337.40 is: 1,170,219.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530,166.20 : 2,291,750.10 = 781,337.40 : x
  2. Step 2: Convert to fraction form
    1,530,166.20/2,291,750.10 = 781,337.40/x
  3. Step 3: Cross multiply
    1,530,166.20x = 2,291,750.10 × 781,337.40
  4. Step 4: Simplify right side
    1,530,166.20x = 1,790,630,064,583.74
  5. Step 5: Solve for x
    x = 1,790,630,064,583.74/1,530,166.20
  6. Step 6: Final answer
    x = 1,170,219.33

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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.