Home / 677,231.77-1,016,016.78-477,941.40

Finding the Fourth Proportional to 677,231.77, 1,016,016.78 and 477,941.40

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Solution

The fourth proportional to 677,231.77, 1,016,016.78 and 477,941.40 is: 717,031.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,231.77 : 1,016,016.78 = 477,941.40 : x
  2. Step 2: Convert to fraction form
    677,231.77/1,016,016.78 = 477,941.40/x
  3. Step 3: Cross multiply
    677,231.77x = 1,016,016.78 × 477,941.40
  4. Step 4: Simplify right side
    677,231.77x = 485,596,482,256.69
  5. Step 5: Solve for x
    x = 485,596,482,256.69/677,231.77
  6. Step 6: Final answer
    x = 717,031.46

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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.