Home / 669,640.20-1,004,345.10-248,699.40

Finding the Fourth Proportional to 669,640.20, 1,004,345.10 and 248,699.40

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Solution

The fourth proportional to 669,640.20, 1,004,345.10 and 248,699.40 is: 373,006.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,640.20 : 1,004,345.10 = 248,699.40 : x
  2. Step 2: Convert to fraction form
    669,640.20/1,004,345.10 = 248,699.40/x
  3. Step 3: Cross multiply
    669,640.20x = 1,004,345.10 × 248,699.40
  4. Step 4: Simplify right side
    669,640.20x = 249,780,023,762.94
  5. Step 5: Solve for x
    x = 249,780,023,762.94/669,640.20
  6. Step 6: Final answer
    x = 373,006.32

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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.