Home / 1,329,815.20-1,994,139.60-530,831.20

Finding the Fourth Proportional to 1,329,815.20, 1,994,139.60 and 530,831.20

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Solution

The fourth proportional to 1,329,815.20, 1,994,139.60 and 530,831.20 is: 796,014.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,815.20 : 1,994,139.60 = 530,831.20 : x
  2. Step 2: Convert to fraction form
    1,329,815.20/1,994,139.60 = 530,831.20/x
  3. Step 3: Cross multiply
    1,329,815.20x = 1,994,139.60 × 530,831.20
  4. Step 4: Simplify right side
    1,329,815.20x = 1,058,551,516,835.52
  5. Step 5: Solve for x
    x = 1,058,551,516,835.52/1,329,815.20
  6. Step 6: Final answer
    x = 796,014.00

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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.