Home / 789,900.69-1,090,058.40-427,323.45

Finding the Fourth Proportional to 789,900.69, 1,090,058.40 and 427,323.45

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Solution

The fourth proportional to 789,900.69, 1,090,058.40 and 427,323.45 is: 589,703.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,900.69 : 1,090,058.40 = 427,323.45 : x
  2. Step 2: Convert to fraction form
    789,900.69/1,090,058.40 = 427,323.45/x
  3. Step 3: Cross multiply
    789,900.69x = 1,090,058.40 × 427,323.45
  4. Step 4: Simplify right side
    789,900.69x = 465,807,516,189.48
  5. Step 5: Solve for x
    x = 465,807,516,189.48/789,900.69
  6. Step 6: Final answer
    x = 589,703.90

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Double scale
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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.