Home / 1,552,479.09-2,142,420.86-864,136.20

Finding the Fourth Proportional to 1,552,479.09, 2,142,420.86 and 864,136.20

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Solution

The fourth proportional to 1,552,479.09, 2,142,420.86 and 864,136.20 is: 1,192,507.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,552,479.09 : 2,142,420.86 = 864,136.20 : x
  2. Step 2: Convert to fraction form
    1,552,479.09/2,142,420.86 = 864,136.20/x
  3. Step 3: Cross multiply
    1,552,479.09x = 2,142,420.86 × 864,136.20
  4. Step 4: Simplify right side
    1,552,479.09x = 1,851,343,416,440.45
  5. Step 5: Solve for x
    x = 1,851,343,416,440.45/1,552,479.09
  6. Step 6: Final answer
    x = 1,192,507.80

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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.