Home / 1,557,205.76-2,148,944-878,141.44

Finding the Fourth Proportional to 1,557,205.76, 2,148,944 and 878,141.44

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Solution

The fourth proportional to 1,557,205.76, 2,148,944 and 878,141.44 is: 1,211,835.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,205.76 : 2,148,944 = 878,141.44 : x
  2. Step 2: Convert to fraction form
    1,557,205.76/2,148,944 = 878,141.44/x
  3. Step 3: Cross multiply
    1,557,205.76x = 2,148,944 × 878,141.44
  4. Step 4: Simplify right side
    1,557,205.76x = 1,887,076,778,639.36
  5. Step 5: Solve for x
    x = 1,887,076,778,639.36/1,557,205.76
  6. Step 6: Final answer
    x = 1,211,835.22

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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.