Home / 1,438,755.93-2,157,666.60-478,953.72

Finding the Fourth Proportional to 1,438,755.93, 2,157,666.60 and 478,953.72

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Solution

The fourth proportional to 1,438,755.93, 2,157,666.60 and 478,953.72 is: 718,275.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,755.93 : 2,157,666.60 = 478,953.72 : x
  2. Step 2: Convert to fraction form
    1,438,755.93/2,157,666.60 = 478,953.72/x
  3. Step 3: Cross multiply
    1,438,755.93x = 2,157,666.60 × 478,953.72
  4. Step 4: Simplify right side
    1,438,755.93x = 1,033,422,444,589.75
  5. Step 5: Solve for x
    x = 1,033,422,444,589.75/1,438,755.93
  6. Step 6: Final answer
    x = 718,275.02

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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.