Home / 910,940.70-1,366,411.05-319,964.70

Finding the Fourth Proportional to 910,940.70, 1,366,411.05 and 319,964.70

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Solution

The fourth proportional to 910,940.70, 1,366,411.05 and 319,964.70 is: 479,947.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,940.70 : 1,366,411.05 = 319,964.70 : x
  2. Step 2: Convert to fraction form
    910,940.70/1,366,411.05 = 319,964.70/x
  3. Step 3: Cross multiply
    910,940.70x = 1,366,411.05 × 319,964.70
  4. Step 4: Simplify right side
    910,940.70x = 437,203,301,689.94
  5. Step 5: Solve for x
    x = 437,203,301,689.94/910,940.70
  6. Step 6: Final answer
    x = 479,947.05

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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.