Home / 1,020,288.72-1,407,999.78-567,579.72

Finding the Fourth Proportional to 1,020,288.72, 1,407,999.78 and 567,579.72

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Solution

The fourth proportional to 1,020,288.72, 1,407,999.78 and 567,579.72 is: 783,260.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,288.72 : 1,407,999.78 = 567,579.72 : x
  2. Step 2: Convert to fraction form
    1,020,288.72/1,407,999.78 = 567,579.72/x
  3. Step 3: Cross multiply
    1,020,288.72x = 1,407,999.78 × 567,579.72
  4. Step 4: Simplify right side
    1,020,288.72x = 799,152,120,892.46
  5. Step 5: Solve for x
    x = 799,152,120,892.46/1,020,288.72
  6. Step 6: Final answer
    x = 783,260.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.