Home / 687,312.14-1,030,449.77-450,714.38

Finding the Fourth Proportional to 687,312.14, 1,030,449.77 and 450,714.38

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Solution

The fourth proportional to 687,312.14, 1,030,449.77 and 450,714.38 is: 675,731.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,312.14 : 1,030,449.77 = 450,714.38 : x
  2. Step 2: Convert to fraction form
    687,312.14/1,030,449.77 = 450,714.38/x
  3. Step 3: Cross multiply
    687,312.14x = 1,030,449.77 × 450,714.38
  4. Step 4: Simplify right side
    687,312.14x = 464,438,525,181.23
  5. Step 5: Solve for x
    x = 464,438,525,181.23/687,312.14
  6. Step 6: Final answer
    x = 675,731.59

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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.