Home / 790,082.81-1,090,310.78-427,513.09

Finding the Fourth Proportional to 790,082.81, 1,090,310.78 and 427,513.09

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Solution

The fourth proportional to 790,082.81, 1,090,310.78 and 427,513.09 is: 589,966.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,082.81 : 1,090,310.78 = 427,513.09 : x
  2. Step 2: Convert to fraction form
    790,082.81/1,090,310.78 = 427,513.09/x
  3. Step 3: Cross multiply
    790,082.81x = 1,090,310.78 × 427,513.09
  4. Step 4: Simplify right side
    790,082.81x = 466,122,128,600.69
  5. Step 5: Solve for x
    x = 466,122,128,600.69/790,082.81
  6. Step 6: Final answer
    x = 589,966.17

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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.