Home / 721,901.34-1,083,916.49-402,676.89

Finding the Fourth Proportional to 721,901.34, 1,083,916.49 and 402,676.89

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Solution

The fourth proportional to 721,901.34, 1,083,916.49 and 402,676.89 is: 604,609.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,901.34 : 1,083,916.49 = 402,676.89 : x
  2. Step 2: Convert to fraction form
    721,901.34/1,083,916.49 = 402,676.89/x
  3. Step 3: Cross multiply
    721,901.34x = 1,083,916.49 × 402,676.89
  4. Step 4: Simplify right side
    721,901.34x = 436,468,121,212.92
  5. Step 5: Solve for x
    x = 436,468,121,212.92/721,901.34
  6. Step 6: Final answer
    x = 604,609.10

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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.