Home / 1,005,730.23-1,387,907.73-553,021.23

Finding the Fourth Proportional to 1,005,730.23, 1,387,907.73 and 553,021.23

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Solution

The fourth proportional to 1,005,730.23, 1,387,907.73 and 553,021.23 is: 763,169.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,730.23 : 1,387,907.73 = 553,021.23 : x
  2. Step 2: Convert to fraction form
    1,005,730.23/1,387,907.73 = 553,021.23/x
  3. Step 3: Cross multiply
    1,005,730.23x = 1,387,907.73 × 553,021.23
  4. Step 4: Simplify right side
    1,005,730.23x = 767,542,439,971.11
  5. Step 5: Solve for x
    x = 767,542,439,971.11/1,005,730.23
  6. Step 6: Final answer
    x = 763,169.30

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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.