Home / 1,247,683.80-1,872,355.95-679,208.16

Finding the Fourth Proportional to 1,247,683.80, 1,872,355.95 and 679,208.16

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Solution

The fourth proportional to 1,247,683.80, 1,872,355.95 and 679,208.16 is: 1,019,264.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,683.80 : 1,872,355.95 = 679,208.16 : x
  2. Step 2: Convert to fraction form
    1,247,683.80/1,872,355.95 = 679,208.16/x
  3. Step 3: Cross multiply
    1,247,683.80x = 1,872,355.95 × 679,208.16
  4. Step 4: Simplify right side
    1,247,683.80x = 1,271,719,439,664.55
  5. Step 5: Solve for x
    x = 1,271,719,439,664.55/1,247,683.80
  6. Step 6: Final answer
    x = 1,019,264.21

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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.