Home / 721,899.30-1,083,913.43-402,674.87

Finding the Fourth Proportional to 721,899.30, 1,083,913.43 and 402,674.87

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Solution

The fourth proportional to 721,899.30, 1,083,913.43 and 402,674.87 is: 604,606.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,899.30 : 1,083,913.43 = 402,674.87 : x
  2. Step 2: Convert to fraction form
    721,899.30/1,083,913.43 = 402,674.87/x
  3. Step 3: Cross multiply
    721,899.30x = 1,083,913.43 × 402,674.87
  4. Step 4: Simplify right side
    721,899.30x = 436,464,692,083.56
  5. Step 5: Solve for x
    x = 436,464,692,083.56/721,899.30
  6. Step 6: Final answer
    x = 604,606.06

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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.