Home / 1,640,605.20-2,460,907.80-1,242,024.45

Finding the Fourth Proportional to 1,640,605.20, 2,460,907.80 and 1,242,024.45

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Solution

The fourth proportional to 1,640,605.20, 2,460,907.80 and 1,242,024.45 is: 1,863,036.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,605.20 : 2,460,907.80 = 1,242,024.45 : x
  2. Step 2: Convert to fraction form
    1,640,605.20/2,460,907.80 = 1,242,024.45/x
  3. Step 3: Cross multiply
    1,640,605.20x = 2,460,907.80 × 1,242,024.45
  4. Step 4: Simplify right side
    1,640,605.20x = 3,056,507,656,795.71
  5. Step 5: Solve for x
    x = 3,056,507,656,795.71/1,640,605.20
  6. Step 6: Final answer
    x = 1,863,036.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.