Home / 880,038.78-1,320,047.02-280,992.35

Finding the Fourth Proportional to 880,038.78, 1,320,047.02 and 280,992.35

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Solution

The fourth proportional to 880,038.78, 1,320,047.02 and 280,992.35 is: 421,484.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,038.78 : 1,320,047.02 = 280,992.35 : x
  2. Step 2: Convert to fraction form
    880,038.78/1,320,047.02 = 280,992.35/x
  3. Step 3: Cross multiply
    880,038.78x = 1,320,047.02 × 280,992.35
  4. Step 4: Simplify right side
    880,038.78x = 370,923,114,260.30
  5. Step 5: Solve for x
    x = 370,923,114,260.30/880,038.78
  6. Step 6: Final answer
    x = 421,484.96

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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.