Home / 1,430,768-2,146,483.68-419,848.64

Finding the Fourth Proportional to 1,430,768, 2,146,483.68 and 419,848.64

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Solution

The fourth proportional to 1,430,768, 2,146,483.68 and 419,848.64 is: 629,870.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,768 : 2,146,483.68 = 419,848.64 : x
  2. Step 2: Convert to fraction form
    1,430,768/2,146,483.68 = 419,848.64/x
  3. Step 3: Cross multiply
    1,430,768x = 2,146,483.68 × 419,848.64
  4. Step 4: Simplify right side
    1,430,768x = 901,198,253,830.20
  5. Step 5: Solve for x
    x = 901,198,253,830.20/1,430,768
  6. Step 6: Final answer
    x = 629,870.29

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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.