Home / 1,457,172.90-2,185,942.68-782,326.80

Finding the Fourth Proportional to 1,457,172.90, 2,185,942.68 and 782,326.80

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Solution

The fourth proportional to 1,457,172.90, 2,185,942.68 and 782,326.80 is: 1,173,588.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457,172.90 : 2,185,942.68 = 782,326.80 : x
  2. Step 2: Convert to fraction form
    1,457,172.90/2,185,942.68 = 782,326.80/x
  3. Step 3: Cross multiply
    1,457,172.90x = 2,185,942.68 × 782,326.80
  4. Step 4: Simplify right side
    1,457,172.90x = 1,710,121,541,827.82
  5. Step 5: Solve for x
    x = 1,710,121,541,827.82/1,457,172.90
  6. Step 6: Final answer
    x = 1,173,588.63

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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.