Home / 1,341,239.40-2,011,859.10-987,820.20

Finding the Fourth Proportional to 1,341,239.40, 2,011,859.10 and 987,820.20

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Solution

The fourth proportional to 1,341,239.40, 2,011,859.10 and 987,820.20 is: 1,481,730.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341,239.40 : 2,011,859.10 = 987,820.20 : x
  2. Step 2: Convert to fraction form
    1,341,239.40/2,011,859.10 = 987,820.20/x
  3. Step 3: Cross multiply
    1,341,239.40x = 2,011,859.10 × 987,820.20
  4. Step 4: Simplify right side
    1,341,239.40x = 1,987,355,058,533.82
  5. Step 5: Solve for x
    x = 1,987,355,058,533.82/1,341,239.40
  6. Step 6: Final answer
    x = 1,481,730.30

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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.