Home / 917,942.49-1,376,913.47-286,856.37

Finding the Fourth Proportional to 917,942.49, 1,376,913.47 and 286,856.37

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Solution

The fourth proportional to 917,942.49, 1,376,913.47 and 286,856.37 is: 430,284.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,942.49 : 1,376,913.47 = 286,856.37 : x
  2. Step 2: Convert to fraction form
    917,942.49/1,376,913.47 = 286,856.37/x
  3. Step 3: Cross multiply
    917,942.49x = 1,376,913.47 × 286,856.37
  4. Step 4: Simplify right side
    917,942.49x = 394,976,398,374.02
  5. Step 5: Solve for x
    x = 394,976,398,374.02/917,942.49
  6. Step 6: Final answer
    x = 430,284.47

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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.