Home / 1,128,458.76-1,557,706.68-766,044.60

Finding the Fourth Proportional to 1,128,458.76, 1,557,706.68 and 766,044.60

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Solution

The fourth proportional to 1,128,458.76, 1,557,706.68 and 766,044.60 is: 1,057,435.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,458.76 : 1,557,706.68 = 766,044.60 : x
  2. Step 2: Convert to fraction form
    1,128,458.76/1,557,706.68 = 766,044.60/x
  3. Step 3: Cross multiply
    1,128,458.76x = 1,557,706.68 × 766,044.60
  4. Step 4: Simplify right side
    1,128,458.76x = 1,193,272,790,597.93
  5. Step 5: Solve for x
    x = 1,193,272,790,597.93/1,128,458.76
  6. Step 6: Final answer
    x = 1,057,435.89

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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.