Home / 956,913.82-1,320,525.57-521,336.35

Finding the Fourth Proportional to 956,913.82, 1,320,525.57 and 521,336.35

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Solution

The fourth proportional to 956,913.82, 1,320,525.57 and 521,336.35 is: 719,435.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    956,913.82 : 1,320,525.57 = 521,336.35 : x
  2. Step 2: Convert to fraction form
    956,913.82/1,320,525.57 = 521,336.35/x
  3. Step 3: Cross multiply
    956,913.82x = 1,320,525.57 × 521,336.35
  4. Step 4: Simplify right side
    956,913.82x = 688,437,980,745.47
  5. Step 5: Solve for x
    x = 688,437,980,745.47/956,913.82
  6. Step 6: Final answer
    x = 719,435.72

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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.