Home / 1,640,645.10-2,460,639.60-787,715.10

Finding the Fourth Proportional to 1,640,645.10, 2,460,639.60 and 787,715.10

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Solution

The fourth proportional to 1,640,645.10, 2,460,639.60 and 787,715.10 is: 1,181,415.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,645.10 : 2,460,639.60 = 787,715.10 : x
  2. Step 2: Convert to fraction form
    1,640,645.10/2,460,639.60 = 787,715.10/x
  3. Step 3: Cross multiply
    1,640,645.10x = 2,460,639.60 × 787,715.10
  4. Step 4: Simplify right side
    1,640,645.10x = 1,938,282,968,577.96
  5. Step 5: Solve for x
    x = 1,938,282,968,577.96/1,640,645.10
  6. Step 6: Final answer
    x = 1,181,415.14

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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.