Home / 1,384,611.84-1,911,072-900,334.08

Finding the Fourth Proportional to 1,384,611.84, 1,911,072 and 900,334.08

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Solution

The fourth proportional to 1,384,611.84, 1,911,072 and 900,334.08 is: 1,242,661.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,611.84 : 1,911,072 = 900,334.08 : x
  2. Step 2: Convert to fraction form
    1,384,611.84/1,911,072 = 900,334.08/x
  3. Step 3: Cross multiply
    1,384,611.84x = 1,911,072 × 900,334.08
  4. Step 4: Simplify right side
    1,384,611.84x = 1,720,603,250,933.76
  5. Step 5: Solve for x
    x = 1,720,603,250,933.76/1,384,611.84
  6. Step 6: Final answer
    x = 1,242,661.08

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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.