Home / 981,030.84-1,353,804.48-551,304.78

Finding the Fourth Proportional to 981,030.84, 1,353,804.48 and 551,304.78

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Solution

The fourth proportional to 981,030.84, 1,353,804.48 and 551,304.78 is: 760,790.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,030.84 : 1,353,804.48 = 551,304.78 : x
  2. Step 2: Convert to fraction form
    981,030.84/1,353,804.48 = 551,304.78/x
  3. Step 3: Cross multiply
    981,030.84x = 1,353,804.48 × 551,304.78
  4. Step 4: Simplify right side
    981,030.84x = 746,358,881,009.41
  5. Step 5: Solve for x
    x = 746,358,881,009.41/981,030.84
  6. Step 6: Final answer
    x = 760,790.44

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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.