Home / 910,943.70-1,366,415.55-319,967.70

Finding the Fourth Proportional to 910,943.70, 1,366,415.55 and 319,967.70

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Solution

The fourth proportional to 910,943.70, 1,366,415.55 and 319,967.70 is: 479,951.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,943.70 : 1,366,415.55 = 319,967.70 : x
  2. Step 2: Convert to fraction form
    910,943.70/1,366,415.55 = 319,967.70/x
  3. Step 3: Cross multiply
    910,943.70x = 1,366,415.55 × 319,967.70
  4. Step 4: Simplify right side
    910,943.70x = 437,208,840,777.74
  5. Step 5: Solve for x
    x = 437,208,840,777.74/910,943.70
  6. Step 6: Final answer
    x = 479,951.55

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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.