Home / 1,319,184.70-1,977,319.05-520,200.70

Finding the Fourth Proportional to 1,319,184.70, 1,977,319.05 and 520,200.70

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Solution

The fourth proportional to 1,319,184.70, 1,977,319.05 and 520,200.70 is: 779,726.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,184.70 : 1,977,319.05 = 520,200.70 : x
  2. Step 2: Convert to fraction form
    1,319,184.70/1,977,319.05 = 520,200.70/x
  3. Step 3: Cross multiply
    1,319,184.70x = 1,977,319.05 × 520,200.70
  4. Step 4: Simplify right side
    1,319,184.70x = 1,028,602,753,933.34
  5. Step 5: Solve for x
    x = 1,028,602,753,933.34/1,319,184.70
  6. Step 6: Final answer
    x = 779,726.11

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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.