Home / 1,240,035.38-1,860,143.28-519,653.98

Finding the Fourth Proportional to 1,240,035.38, 1,860,143.28 and 519,653.98

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Solution

The fourth proportional to 1,240,035.38, 1,860,143.28 and 519,653.98 is: 779,518.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,035.38 : 1,860,143.28 = 519,653.98 : x
  2. Step 2: Convert to fraction form
    1,240,035.38/1,860,143.28 = 519,653.98/x
  3. Step 3: Cross multiply
    1,240,035.38x = 1,860,143.28 × 519,653.98
  4. Step 4: Simplify right side
    1,240,035.38x = 966,630,858,822.25
  5. Step 5: Solve for x
    x = 966,630,858,822.25/1,240,035.38
  6. Step 6: Final answer
    x = 779,518.77

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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.