Home / 1,333,557.89-1,840,312.11-721,711.19

Finding the Fourth Proportional to 1,333,557.89, 1,840,312.11 and 721,711.19

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Solution

The fourth proportional to 1,333,557.89, 1,840,312.11 and 721,711.19 is: 995,962.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,557.89 : 1,840,312.11 = 721,711.19 : x
  2. Step 2: Convert to fraction form
    1,333,557.89/1,840,312.11 = 721,711.19/x
  3. Step 3: Cross multiply
    1,333,557.89x = 1,840,312.11 × 721,711.19
  4. Step 4: Simplify right side
    1,333,557.89x = 1,328,173,833,677.95
  5. Step 5: Solve for x
    x = 1,328,173,833,677.95/1,333,557.89
  6. Step 6: Final answer
    x = 995,962.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.