Home / 646,719.60-970,225.20-197,461.20

Finding the Fourth Proportional to 646,719.60, 970,225.20 and 197,461.20

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Solution

The fourth proportional to 646,719.60, 970,225.20 and 197,461.20 is: 296,236.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,719.60 : 970,225.20 = 197,461.20 : x
  2. Step 2: Convert to fraction form
    646,719.60/970,225.20 = 197,461.20/x
  3. Step 3: Cross multiply
    646,719.60x = 970,225.20 × 197,461.20
  4. Step 4: Simplify right side
    646,719.60x = 191,581,832,262.24
  5. Step 5: Solve for x
    x = 191,581,832,262.24/646,719.60
  6. Step 6: Final answer
    x = 296,236.32

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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.