Home / 1,178,018.18-1,625,621.86-719,899.40

Finding the Fourth Proportional to 1,178,018.18, 1,625,621.86 and 719,899.40

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Solution

The fourth proportional to 1,178,018.18, 1,625,621.86 and 719,899.40 is: 993,434.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,018.18 : 1,625,621.86 = 719,899.40 : x
  2. Step 2: Convert to fraction form
    1,178,018.18/1,625,621.86 = 719,899.40/x
  3. Step 3: Cross multiply
    1,178,018.18x = 1,625,621.86 × 719,899.40
  4. Step 4: Simplify right side
    1,178,018.18x = 1,170,284,201,640.88
  5. Step 5: Solve for x
    x = 1,170,284,201,640.88/1,178,018.18
  6. Step 6: Final answer
    x = 993,434.75

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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.