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Finding the Fourth Proportional to 1,947,300.04, 2,920,950.06 and 749,786.32

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Solution

The fourth proportional to 1,947,300.04, 2,920,950.06 and 749,786.32 is: 1,124,679.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947,300.04 : 2,920,950.06 = 749,786.32 : x
  2. Step 2: Convert to fraction form
    1,947,300.04/2,920,950.06 = 749,786.32/x
  3. Step 3: Cross multiply
    1,947,300.04x = 2,920,950.06 × 749,786.32
  4. Step 4: Simplify right side
    1,947,300.04x = 2,190,088,401,448.22
  5. Step 5: Solve for x
    x = 2,190,088,401,448.22/1,947,300.04
  6. Step 6: Final answer
    x = 1,124,679.48

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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.