Home / 646,834.32-970,355.16-272,912.40

Finding the Fourth Proportional to 646,834.32, 970,355.16 and 272,912.40

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Solution

The fourth proportional to 646,834.32, 970,355.16 and 272,912.40 is: 409,412.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,834.32 : 970,355.16 = 272,912.40 : x
  2. Step 2: Convert to fraction form
    646,834.32/970,355.16 = 272,912.40/x
  3. Step 3: Cross multiply
    646,834.32x = 970,355.16 × 272,912.40
  4. Step 4: Simplify right side
    646,834.32x = 264,821,955,567.98
  5. Step 5: Solve for x
    x = 264,821,955,567.98/646,834.32
  6. Step 6: Final answer
    x = 409,412.34

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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.