Home / 1,994,133.54-2,990,572.91-645,983.36

Finding the Fourth Proportional to 1,994,133.54, 2,990,572.91 and 645,983.36

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Solution

The fourth proportional to 1,994,133.54, 2,990,572.91 and 645,983.36 is: 968,771.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994,133.54 : 2,990,572.91 = 645,983.36 : x
  2. Step 2: Convert to fraction form
    1,994,133.54/2,990,572.91 = 645,983.36/x
  3. Step 3: Cross multiply
    1,994,133.54x = 2,990,572.91 × 645,983.36
  4. Step 4: Simplify right side
    1,994,133.54x = 1,931,860,336,726.78
  5. Step 5: Solve for x
    x = 1,931,860,336,726.78/1,994,133.54
  6. Step 6: Final answer
    x = 968,771.80

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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.