Home / 4,127,019.30-6,190,528.95-1,287,126.90

Finding the Fourth Proportional to 4,127,019.30, 6,190,528.95 and 1,287,126.90

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Solution

The fourth proportional to 4,127,019.30, 6,190,528.95 and 1,287,126.90 is: 1,930,690.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,127,019.30 : 6,190,528.95 = 1,287,126.90 : x
  2. Step 2: Convert to fraction form
    4,127,019.30/6,190,528.95 = 1,287,126.90/x
  3. Step 3: Cross multiply
    4,127,019.30x = 6,190,528.95 × 1,287,126.90
  4. Step 4: Simplify right side
    4,127,019.30x = 7,967,996,336,773.76
  5. Step 5: Solve for x
    x = 7,967,996,336,773.76/4,127,019.30
  6. Step 6: Final answer
    x = 1,930,690.35

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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.