Home / 808,002.20-1,115,050.80-445,440.20

Finding the Fourth Proportional to 808,002.20, 1,115,050.80 and 445,440.20

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Solution

The fourth proportional to 808,002.20, 1,115,050.80 and 445,440.20 is: 614,711.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,002.20 : 1,115,050.80 = 445,440.20 : x
  2. Step 2: Convert to fraction form
    808,002.20/1,115,050.80 = 445,440.20/x
  3. Step 3: Cross multiply
    808,002.20x = 1,115,050.80 × 445,440.20
  4. Step 4: Simplify right side
    808,002.20x = 496,688,451,362.16
  5. Step 5: Solve for x
    x = 496,688,451,362.16/808,002.20
  6. Step 6: Final answer
    x = 614,711.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.