Home / 426,050.58-638,466.91-312,842.55

Finding the Fourth Proportional to 426,050.58, 638,466.91 and 312,842.55

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Solution

The fourth proportional to 426,050.58, 638,466.91 and 312,842.55 is: 468,816.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,050.58 : 638,466.91 = 312,842.55 : x
  2. Step 2: Convert to fraction form
    426,050.58/638,466.91 = 312,842.55/x
  3. Step 3: Cross multiply
    426,050.58x = 638,466.91 × 312,842.55
  4. Step 4: Simplify right side
    426,050.58x = 199,739,617,827.17
  5. Step 5: Solve for x
    x = 199,739,617,827.17/426,050.58
  6. Step 6: Final answer
    x = 468,816.67

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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.