Home / 947,105.95-1,420,671.23-316,019.76

Finding the Fourth Proportional to 947,105.95, 1,420,671.23 and 316,019.76

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Solution

The fourth proportional to 947,105.95, 1,420,671.23 and 316,019.76 is: 474,033.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,105.95 : 1,420,671.23 = 316,019.76 : x
  2. Step 2: Convert to fraction form
    947,105.95/1,420,671.23 = 316,019.76/x
  3. Step 3: Cross multiply
    947,105.95x = 1,420,671.23 × 316,019.76
  4. Step 4: Simplify right side
    947,105.95x = 448,960,179,563.41
  5. Step 5: Solve for x
    x = 448,960,179,563.41/947,105.95
  6. Step 6: Final answer
    x = 474,033.74

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Double scale
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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.