Home / 1,009,965.75-1,393,781.90-557,285.91

Finding the Fourth Proportional to 1,009,965.75, 1,393,781.90 and 557,285.91

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Solution

The fourth proportional to 1,009,965.75, 1,393,781.90 and 557,285.91 is: 769,070.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,965.75 : 1,393,781.90 = 557,285.91 : x
  2. Step 2: Convert to fraction form
    1,009,965.75/1,393,781.90 = 557,285.91/x
  3. Step 3: Cross multiply
    1,009,965.75x = 1,393,781.90 × 557,285.91
  4. Step 4: Simplify right side
    1,009,965.75x = 776,735,011,696.60
  5. Step 5: Solve for x
    x = 776,735,011,696.60/1,009,965.75
  6. Step 6: Final answer
    x = 769,070.65

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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.