Home / 710,467.18-980,433.26-388,170.36

Finding the Fourth Proportional to 710,467.18, 980,433.26 and 388,170.36

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Solution

The fourth proportional to 710,467.18, 980,433.26 and 388,170.36 is: 535,668.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,467.18 : 980,433.26 = 388,170.36 : x
  2. Step 2: Convert to fraction form
    710,467.18/980,433.26 = 388,170.36/x
  3. Step 3: Cross multiply
    710,467.18x = 980,433.26 × 388,170.36
  4. Step 4: Simplify right side
    710,467.18x = 380,575,131,490.17
  5. Step 5: Solve for x
    x = 380,575,131,490.17/710,467.18
  6. Step 6: Final answer
    x = 535,668.84

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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.