Home / 789,827-1,090,136.58-545,155.16

Finding the Fourth Proportional to 789,827, 1,090,136.58 and 545,155.16

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Solution

The fourth proportional to 789,827, 1,090,136.58 and 545,155.16 is: 752,435.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,827 : 1,090,136.58 = 545,155.16 : x
  2. Step 2: Convert to fraction form
    789,827/1,090,136.58 = 545,155.16/x
  3. Step 3: Cross multiply
    789,827x = 1,090,136.58 × 545,155.16
  4. Step 4: Simplify right side
    789,827x = 594,293,581,691.75
  5. Step 5: Solve for x
    x = 594,293,581,691.75/789,827
  6. Step 6: Final answer
    x = 752,435.13

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1.5x scale

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.