Home / 646,905.48-970,808.40-267,828.18

Finding the Fourth Proportional to 646,905.48, 970,808.40 and 267,828.18

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Solution

The fourth proportional to 646,905.48, 970,808.40 and 267,828.18 is: 401,928.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,905.48 : 970,808.40 = 267,828.18 : x
  2. Step 2: Convert to fraction form
    646,905.48/970,808.40 = 267,828.18/x
  3. Step 3: Cross multiply
    646,905.48x = 970,808.40 × 267,828.18
  4. Step 4: Simplify right side
    646,905.48x = 260,009,846,900.71
  5. Step 5: Solve for x
    x = 260,009,846,900.71/646,905.48
  6. Step 6: Final answer
    x = 401,928.65

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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.