Home / 916,211-1,374,403.98-284,955.32

Finding the Fourth Proportional to 916,211, 1,374,403.98 and 284,955.32

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Solution

The fourth proportional to 916,211, 1,374,403.98 and 284,955.32 is: 427,460.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,211 : 1,374,403.98 = 284,955.32 : x
  2. Step 2: Convert to fraction form
    916,211/1,374,403.98 = 284,955.32/x
  3. Step 3: Cross multiply
    916,211x = 1,374,403.98 × 284,955.32
  4. Step 4: Simplify right side
    916,211x = 391,643,725,930.17
  5. Step 5: Solve for x
    x = 391,643,725,930.17/916,211
  6. Step 6: Final answer
    x = 427,460.19

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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.