Home / 862,899.30-1,293,376.95-413,835.30

Finding the Fourth Proportional to 862,899.30, 1,293,376.95 and 413,835.30

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Solution

The fourth proportional to 862,899.30, 1,293,376.95 and 413,835.30 is: 620,286.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,899.30 : 1,293,376.95 = 413,835.30 : x
  2. Step 2: Convert to fraction form
    862,899.30/1,293,376.95 = 413,835.30/x
  3. Step 3: Cross multiply
    862,899.30x = 1,293,376.95 × 413,835.30
  4. Step 4: Simplify right side
    862,899.30x = 535,245,038,116.34
  5. Step 5: Solve for x
    x = 535,245,038,116.34/862,899.30
  6. Step 6: Final answer
    x = 620,286.79

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1.5x scale

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.