Home / 642,582.08-964,203.60-306,004.40

Finding the Fourth Proportional to 642,582.08, 964,203.60 and 306,004.40

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Solution

The fourth proportional to 642,582.08, 964,203.60 and 306,004.40 is: 459,163.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,582.08 : 964,203.60 = 306,004.40 : x
  2. Step 2: Convert to fraction form
    642,582.08/964,203.60 = 306,004.40/x
  3. Step 3: Cross multiply
    642,582.08x = 964,203.60 × 306,004.40
  4. Step 4: Simplify right side
    642,582.08x = 295,050,544,095.84
  5. Step 5: Solve for x
    x = 295,050,544,095.84/642,582.08
  6. Step 6: Final answer
    x = 459,163.98

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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.