Home / 1,330,698.92-1,996,214.42-520,978.77

Finding the Fourth Proportional to 1,330,698.92, 1,996,214.42 and 520,978.77

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Solution

The fourth proportional to 1,330,698.92, 1,996,214.42 and 520,978.77 is: 781,533.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,698.92 : 1,996,214.42 = 520,978.77 : x
  2. Step 2: Convert to fraction form
    1,330,698.92/1,996,214.42 = 520,978.77/x
  3. Step 3: Cross multiply
    1,330,698.92x = 1,996,214.42 × 520,978.77
  4. Step 4: Simplify right side
    1,330,698.92x = 1,039,985,334,490.31
  5. Step 5: Solve for x
    x = 1,039,985,334,490.31/1,330,698.92
  6. Step 6: Final answer
    x = 781,533.16

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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.