Home / 672,117.40-1,008,467.70-339,693.40

Finding the Fourth Proportional to 672,117.40, 1,008,467.70 and 339,693.40

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Solution

The fourth proportional to 672,117.40, 1,008,467.70 and 339,693.40 is: 509,687.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,117.40 : 1,008,467.70 = 339,693.40 : x
  2. Step 2: Convert to fraction form
    672,117.40/1,008,467.70 = 339,693.40/x
  3. Step 3: Cross multiply
    672,117.40x = 1,008,467.70 × 339,693.40
  4. Step 4: Simplify right side
    672,117.40x = 342,569,821,803.18
  5. Step 5: Solve for x
    x = 342,569,821,803.18/672,117.40
  6. Step 6: Final answer
    x = 509,687.48

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1.5x scale

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.