Home / 811,554.69-1,119,956.55-505,754.69

Finding the Fourth Proportional to 811,554.69, 1,119,956.55 and 505,754.69

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Solution

The fourth proportional to 811,554.69, 1,119,956.55 and 505,754.69 is: 697,948.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,554.69 : 1,119,956.55 = 505,754.69 : x
  2. Step 2: Convert to fraction form
    811,554.69/1,119,956.55 = 505,754.69/x
  3. Step 3: Cross multiply
    811,554.69x = 1,119,956.55 × 505,754.69
  4. Step 4: Simplify right side
    811,554.69x = 566,423,271,684.79
  5. Step 5: Solve for x
    x = 566,423,271,684.79/811,554.69
  6. Step 6: Final answer
    x = 697,948.37

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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.