Home / 677,312.19-1,016,137.72-478,021.82

Finding the Fourth Proportional to 677,312.19, 1,016,137.72 and 478,021.82

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Solution

The fourth proportional to 677,312.19, 1,016,137.72 and 478,021.82 is: 717,152.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,312.19 : 1,016,137.72 = 478,021.82 : x
  2. Step 2: Convert to fraction form
    677,312.19/1,016,137.72 = 478,021.82/x
  3. Step 3: Cross multiply
    677,312.19x = 1,016,137.72 × 478,021.82
  4. Step 4: Simplify right side
    677,312.19x = 485,736,002,285.05
  5. Step 5: Solve for x
    x = 485,736,002,285.05/677,312.19
  6. Step 6: Final answer
    x = 717,152.31

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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.