Home / 1,333,437.36-1,840,143.52-721,590.12

Finding the Fourth Proportional to 1,333,437.36, 1,840,143.52 and 721,590.12

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Solution

The fourth proportional to 1,333,437.36, 1,840,143.52 and 721,590.12 is: 995,794.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,437.36 : 1,840,143.52 = 721,590.12 : x
  2. Step 2: Convert to fraction form
    1,333,437.36/1,840,143.52 = 721,590.12/x
  3. Step 3: Cross multiply
    1,333,437.36x = 1,840,143.52 × 721,590.12
  4. Step 4: Simplify right side
    1,333,437.36x = 1,327,829,379,715.65
  5. Step 5: Solve for x
    x = 1,327,829,379,715.65/1,333,437.36
  6. Step 6: Final answer
    x = 995,794.34

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1.5x scale

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.