Home / 964,393.80-1,330,868.38-556,512.84

Finding the Fourth Proportional to 964,393.80, 1,330,868.38 and 556,512.84

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Solution

The fourth proportional to 964,393.80, 1,330,868.38 and 556,512.84 is: 767,990.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    964,393.80 : 1,330,868.38 = 556,512.84 : x
  2. Step 2: Convert to fraction form
    964,393.80/1,330,868.38 = 556,512.84/x
  3. Step 3: Cross multiply
    964,393.80x = 1,330,868.38 × 556,512.84
  4. Step 4: Simplify right side
    964,393.80x = 740,645,341,820.00
  5. Step 5: Solve for x
    x = 740,645,341,820.00/964,393.80
  6. Step 6: Final answer
    x = 767,990.57

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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.