Home / 1,071,775.51-1,479,743.04-664,310.68

Finding the Fourth Proportional to 1,071,775.51, 1,479,743.04 and 664,310.68

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Solution

The fourth proportional to 1,071,775.51, 1,479,743.04 and 664,310.68 is: 917,178.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,775.51 : 1,479,743.04 = 664,310.68 : x
  2. Step 2: Convert to fraction form
    1,071,775.51/1,479,743.04 = 664,310.68/x
  3. Step 3: Cross multiply
    1,071,775.51x = 1,479,743.04 × 664,310.68
  4. Step 4: Simplify right side
    1,071,775.51x = 983,009,105,127.67
  5. Step 5: Solve for x
    x = 983,009,105,127.67/1,071,775.51
  6. Step 6: Final answer
    x = 917,178.17

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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.