Home / 1,210,010.74-1,669,788.54-666,125.71

Finding the Fourth Proportional to 1,210,010.74, 1,669,788.54 and 666,125.71

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Solution

The fourth proportional to 1,210,010.74, 1,669,788.54 and 666,125.71 is: 919,239.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,010.74 : 1,669,788.54 = 666,125.71 : x
  2. Step 2: Convert to fraction form
    1,210,010.74/1,669,788.54 = 666,125.71/x
  3. Step 3: Cross multiply
    1,210,010.74x = 1,669,788.54 × 666,125.71
  4. Step 4: Simplify right side
    1,210,010.74x = 1,112,289,072,582.89
  5. Step 5: Solve for x
    x = 1,112,289,072,582.89/1,210,010.74
  6. Step 6: Final answer
    x = 919,239.01

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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.