Home / 646,931.13-970,544.32-197,715.86

Finding the Fourth Proportional to 646,931.13, 970,544.32 and 197,715.86

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Solution

The fourth proportional to 646,931.13, 970,544.32 and 197,715.86 is: 296,618.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,931.13 : 970,544.32 = 197,715.86 : x
  2. Step 2: Convert to fraction form
    646,931.13/970,544.32 = 197,715.86/x
  3. Step 3: Cross multiply
    646,931.13x = 970,544.32 × 197,715.86
  4. Step 4: Simplify right side
    646,931.13x = 191,892,006,828.99
  5. Step 5: Solve for x
    x = 191,892,006,828.99/646,931.13
  6. Step 6: Final answer
    x = 296,618.91

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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.