Home / 790,072.38-1,090,291.86-427,488.30

Finding the Fourth Proportional to 790,072.38, 1,090,291.86 and 427,488.30

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Solution

The fourth proportional to 790,072.38, 1,090,291.86 and 427,488.30 is: 589,929.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,072.38 : 1,090,291.86 = 427,488.30 : x
  2. Step 2: Convert to fraction form
    790,072.38/1,090,291.86 = 427,488.30/x
  3. Step 3: Cross multiply
    790,072.38x = 1,090,291.86 × 427,488.30
  4. Step 4: Simplify right side
    790,072.38x = 466,087,013,735.24
  5. Step 5: Solve for x
    x = 466,087,013,735.24/790,072.38
  6. Step 6: Final answer
    x = 589,929.51

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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.