Home / 746,357.42-1,028,929.75-631,172.93

Finding the Fourth Proportional to 746,357.42, 1,028,929.75 and 631,172.93

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Solution

The fourth proportional to 746,357.42, 1,028,929.75 and 631,172.93 is: 870,136.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,357.42 : 1,028,929.75 = 631,172.93 : x
  2. Step 2: Convert to fraction form
    746,357.42/1,028,929.75 = 631,172.93/x
  3. Step 3: Cross multiply
    746,357.42x = 1,028,929.75 × 631,172.93
  4. Step 4: Simplify right side
    746,357.42x = 649,432,598,349.09
  5. Step 5: Solve for x
    x = 649,432,598,349.09/746,357.42
  6. Step 6: Final answer
    x = 870,136.18

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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.