Home / 1,327,219.76-1,989,650.76-517,417.52

Finding the Fourth Proportional to 1,327,219.76, 1,989,650.76 and 517,417.52

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Solution

The fourth proportional to 1,327,219.76, 1,989,650.76 and 517,417.52 is: 775,666.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,219.76 : 1,989,650.76 = 517,417.52 : x
  2. Step 2: Convert to fraction form
    1,327,219.76/1,989,650.76 = 517,417.52/x
  3. Step 3: Cross multiply
    1,327,219.76x = 1,989,650.76 × 517,417.52
  4. Step 4: Simplify right side
    1,327,219.76x = 1,029,480,161,905.32
  5. Step 5: Solve for x
    x = 1,029,480,161,905.32/1,327,219.76
  6. Step 6: Final answer
    x = 775,666.69

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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.