Home / 1,388,272.98-2,082,577.95-391,000.98

Finding the Fourth Proportional to 1,388,272.98, 2,082,577.95 and 391,000.98

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Solution

The fourth proportional to 1,388,272.98, 2,082,577.95 and 391,000.98 is: 586,548.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,272.98 : 2,082,577.95 = 391,000.98 : x
  2. Step 2: Convert to fraction form
    1,388,272.98/2,082,577.95 = 391,000.98/x
  3. Step 3: Cross multiply
    1,388,272.98x = 2,082,577.95 × 391,000.98
  4. Step 4: Simplify right side
    1,388,272.98x = 814,290,019,376.39
  5. Step 5: Solve for x
    x = 814,290,019,376.39/1,388,272.98
  6. Step 6: Final answer
    x = 586,548.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.