Home / 988,653.86-1,364,289.33-558,908.36

Finding the Fourth Proportional to 988,653.86, 1,364,289.33 and 558,908.36

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Solution

The fourth proportional to 988,653.86, 1,364,289.33 and 558,908.36 is: 771,263.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,653.86 : 1,364,289.33 = 558,908.36 : x
  2. Step 2: Convert to fraction form
    988,653.86/1,364,289.33 = 558,908.36/x
  3. Step 3: Cross multiply
    988,653.86x = 1,364,289.33 × 558,908.36
  4. Step 4: Simplify right side
    988,653.86x = 762,512,702,379.81
  5. Step 5: Solve for x
    x = 762,512,702,379.81/988,653.86
  6. Step 6: Final answer
    x = 771,263.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.