Home / 916,284.78-1,264,269.87-529,016.22

Finding the Fourth Proportional to 916,284.78, 1,264,269.87 and 529,016.22

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Solution

The fourth proportional to 916,284.78, 1,264,269.87 and 529,016.22 is: 729,925.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,284.78 : 1,264,269.87 = 529,016.22 : x
  2. Step 2: Convert to fraction form
    916,284.78/1,264,269.87 = 529,016.22/x
  3. Step 3: Cross multiply
    916,284.78x = 1,264,269.87 × 529,016.22
  4. Step 4: Simplify right side
    916,284.78x = 668,819,267,687.29
  5. Step 5: Solve for x
    x = 668,819,267,687.29/916,284.78
  6. Step 6: Final answer
    x = 729,925.11

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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.