Home / 1,064,680.80-1,597,021.20-987,698.40

Finding the Fourth Proportional to 1,064,680.80, 1,597,021.20 and 987,698.40

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Solution

The fourth proportional to 1,064,680.80, 1,597,021.20 and 987,698.40 is: 1,481,547.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,064,680.80 : 1,597,021.20 = 987,698.40 : x
  2. Step 2: Convert to fraction form
    1,064,680.80/1,597,021.20 = 987,698.40/x
  3. Step 3: Cross multiply
    1,064,680.80x = 1,597,021.20 × 987,698.40
  4. Step 4: Simplify right side
    1,064,680.80x = 1,577,375,284,006.08
  5. Step 5: Solve for x
    x = 1,577,375,284,006.08/1,064,680.80
  6. Step 6: Final answer
    x = 1,481,547.60

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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.