Home / 448,988.81-620,279.32-294,307.26

Finding the Fourth Proportional to 448,988.81, 620,279.32 and 294,307.26

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Solution

The fourth proportional to 448,988.81, 620,279.32 and 294,307.26 is: 406,586.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,988.81 : 620,279.32 = 294,307.26 : x
  2. Step 2: Convert to fraction form
    448,988.81/620,279.32 = 294,307.26/x
  3. Step 3: Cross multiply
    448,988.81x = 620,279.32 × 294,307.26
  4. Step 4: Simplify right side
    448,988.81x = 182,552,704,002.47
  5. Step 5: Solve for x
    x = 182,552,704,002.47/448,988.81
  6. Step 6: Final answer
    x = 406,586.31

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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.