Home / 1,005,749.74-1,387,934.65-553,040.74

Finding the Fourth Proportional to 1,005,749.74, 1,387,934.65 and 553,040.74

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Solution

The fourth proportional to 1,005,749.74, 1,387,934.65 and 553,040.74 is: 763,196.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,749.74 : 1,387,934.65 = 553,040.74 : x
  2. Step 2: Convert to fraction form
    1,005,749.74/1,387,934.65 = 553,040.74/x
  3. Step 3: Cross multiply
    1,005,749.74x = 1,387,934.65 × 553,040.74
  4. Step 4: Simplify right side
    1,005,749.74x = 767,584,405,907.64
  5. Step 5: Solve for x
    x = 767,584,405,907.64/1,005,749.74
  6. Step 6: Final answer
    x = 763,196.23

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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.