Home / 2,980,388-4,471,248.36-1,087,129.38

Finding the Fourth Proportional to 2,980,388, 4,471,248.36 and 1,087,129.38

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Solution

The fourth proportional to 2,980,388, 4,471,248.36 and 1,087,129.38 is: 1,630,937.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980,388 : 4,471,248.36 = 1,087,129.38 : x
  2. Step 2: Convert to fraction form
    2,980,388/4,471,248.36 = 1,087,129.38/x
  3. Step 3: Cross multiply
    2,980,388x = 4,471,248.36 × 1,087,129.38
  4. Step 4: Simplify right side
    2,980,388x = 4,860,825,457,432.82
  5. Step 5: Solve for x
    x = 4,860,825,457,432.82/2,980,388
  6. Step 6: Final answer
    x = 1,630,937.13

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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.