Home / 470,639.85-649,497.33-289,458.24

Finding the Fourth Proportional to 470,639.85, 649,497.33 and 289,458.24

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Solution

The fourth proportional to 470,639.85, 649,497.33 and 289,458.24 is: 399,461.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,639.85 : 649,497.33 = 289,458.24 : x
  2. Step 2: Convert to fraction form
    470,639.85/649,497.33 = 289,458.24/x
  3. Step 3: Cross multiply
    470,639.85x = 649,497.33 × 289,458.24
  4. Step 4: Simplify right side
    470,639.85x = 188,002,354,026.50
  5. Step 5: Solve for x
    x = 188,002,354,026.50/470,639.85
  6. Step 6: Final answer
    x = 399,461.19

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1.5x scale

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.