Home / 1,010,128.77-1,393,970.85-557,419.77

Finding the Fourth Proportional to 1,010,128.77, 1,393,970.85 and 557,419.77

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Solution

The fourth proportional to 1,010,128.77, 1,393,970.85 and 557,419.77 is: 769,235.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,128.77 : 1,393,970.85 = 557,419.77 : x
  2. Step 2: Convert to fraction form
    1,010,128.77/1,393,970.85 = 557,419.77/x
  3. Step 3: Cross multiply
    1,010,128.77x = 1,393,970.85 × 557,419.77
  4. Step 4: Simplify right side
    1,010,128.77x = 777,026,910,593.71
  5. Step 5: Solve for x
    x = 777,026,910,593.71/1,010,128.77
  6. Step 6: Final answer
    x = 769,235.50

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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.