Home / 1,312,155.92-1,810,781.64-739,205.12

Finding the Fourth Proportional to 1,312,155.92, 1,810,781.64 and 739,205.12

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Solution

The fourth proportional to 1,312,155.92, 1,810,781.64 and 739,205.12 is: 1,020,106.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,155.92 : 1,810,781.64 = 739,205.12 : x
  2. Step 2: Convert to fraction form
    1,312,155.92/1,810,781.64 = 739,205.12/x
  3. Step 3: Cross multiply
    1,312,155.92x = 1,810,781.64 × 739,205.12
  4. Step 4: Simplify right side
    1,312,155.92x = 1,338,539,059,490.00
  5. Step 5: Solve for x
    x = 1,338,539,059,490.00/1,312,155.92
  6. Step 6: Final answer
    x = 1,020,106.71

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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.