Home / 1,312,355.76-1,810,983.96-739,429.80

Finding the Fourth Proportional to 1,312,355.76, 1,810,983.96 and 739,429.80

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Solution

The fourth proportional to 1,312,355.76, 1,810,983.96 and 739,429.80 is: 1,020,375.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,355.76 : 1,810,983.96 = 739,429.80 : x
  2. Step 2: Convert to fraction form
    1,312,355.76/1,810,983.96 = 739,429.80/x
  3. Step 3: Cross multiply
    1,312,355.76x = 1,810,983.96 × 739,429.80
  4. Step 4: Simplify right side
    1,312,355.76x = 1,339,095,507,346.01
  5. Step 5: Solve for x
    x = 1,339,095,507,346.01/1,312,355.76
  6. Step 6: Final answer
    x = 1,020,375.38

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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.