Home / 1,312,345.70-1,810,970.16-739,419.74

Finding the Fourth Proportional to 1,312,345.70, 1,810,970.16 and 739,419.74

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Solution

The fourth proportional to 1,312,345.70, 1,810,970.16 and 739,419.74 is: 1,020,361.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,345.70 : 1,810,970.16 = 739,419.74 : x
  2. Step 2: Convert to fraction form
    1,312,345.70/1,810,970.16 = 739,419.74/x
  3. Step 3: Cross multiply
    1,312,345.70x = 1,810,970.16 × 739,419.74
  4. Step 4: Simplify right side
    1,312,345.70x = 1,339,067,084,854.96
  5. Step 5: Solve for x
    x = 1,339,067,084,854.96/1,312,345.70
  6. Step 6: Final answer
    x = 1,020,361.54

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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.