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Finding the Fourth Proportional to 1,009,908, 1,393,673.04 and 557,199

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Solution

The fourth proportional to 1,009,908, 1,393,673.04 and 557,199 is: 768,934.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,908 : 1,393,673.04 = 557,199 : x
  2. Step 2: Convert to fraction form
    1,009,908/1,393,673.04 = 557,199/x
  3. Step 3: Cross multiply
    1,009,908x = 1,393,673.04 × 557,199
  4. Step 4: Simplify right side
    1,009,908x = 776,553,224,214.96
  5. Step 5: Solve for x
    x = 776,553,224,214.96/1,009,908
  6. Step 6: Final answer
    x = 768,934.62

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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.