Home / 1,640,646.90-2,460,970.35-1,242,066.15

Finding the Fourth Proportional to 1,640,646.90, 2,460,970.35 and 1,242,066.15

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Solution

The fourth proportional to 1,640,646.90, 2,460,970.35 and 1,242,066.15 is: 1,863,099.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,646.90 : 2,460,970.35 = 1,242,066.15 : x
  2. Step 2: Convert to fraction form
    1,640,646.90/2,460,970.35 = 1,242,066.15/x
  3. Step 3: Cross multiply
    1,640,646.90x = 2,460,970.35 × 1,242,066.15
  4. Step 4: Simplify right side
    1,640,646.90x = 3,056,687,967,888.65
  5. Step 5: Solve for x
    x = 3,056,687,967,888.65/1,640,646.90
  6. Step 6: Final answer
    x = 1,863,099.23

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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.