Home / 687,312.64-1,030,450.52-450,714.88

Finding the Fourth Proportional to 687,312.64, 1,030,450.52 and 450,714.88

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Solution

The fourth proportional to 687,312.64, 1,030,450.52 and 450,714.88 is: 675,732.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,312.64 : 1,030,450.52 = 450,714.88 : x
  2. Step 2: Convert to fraction form
    687,312.64/1,030,450.52 = 450,714.88/x
  3. Step 3: Cross multiply
    687,312.64x = 1,030,450.52 × 450,714.88
  4. Step 4: Simplify right side
    687,312.64x = 464,439,378,442.27
  5. Step 5: Solve for x
    x = 464,439,378,442.27/687,312.64
  6. Step 6: Final answer
    x = 675,732.34

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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.