Home / 789,890.61-1,090,045.75-427,313.62

Finding the Fourth Proportional to 789,890.61, 1,090,045.75 and 427,313.62

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Solution

The fourth proportional to 789,890.61, 1,090,045.75 and 427,313.62 is: 589,691.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,890.61 : 1,090,045.75 = 427,313.62 : x
  2. Step 2: Convert to fraction form
    789,890.61/1,090,045.75 = 427,313.62/x
  3. Step 3: Cross multiply
    789,890.61x = 1,090,045.75 × 427,313.62
  4. Step 4: Simplify right side
    789,890.61x = 465,791,395,398.12
  5. Step 5: Solve for x
    x = 465,791,395,398.12/789,890.61
  6. Step 6: Final answer
    x = 589,691.01

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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.