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Finding the Fourth Proportional to 1,490,602.80, 2,235,904.20 and 1,449,130.80

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Solution

The fourth proportional to 1,490,602.80, 2,235,904.20 and 1,449,130.80 is: 2,173,696.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,602.80 : 2,235,904.20 = 1,449,130.80 : x
  2. Step 2: Convert to fraction form
    1,490,602.80/2,235,904.20 = 1,449,130.80/x
  3. Step 3: Cross multiply
    1,490,602.80x = 2,235,904.20 × 1,449,130.80
  4. Step 4: Simplify right side
    1,490,602.80x = 3,240,117,642,069.36
  5. Step 5: Solve for x
    x = 3,240,117,642,069.36/1,490,602.80
  6. Step 6: Final answer
    x = 2,173,696.20

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Similar ratio
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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.