Home / 1,355,551.40-1,870,650.25-782,907.32

Finding the Fourth Proportional to 1,355,551.40, 1,870,650.25 and 782,907.32

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Solution

The fourth proportional to 1,355,551.40, 1,870,650.25 and 782,907.32 is: 1,080,405.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,551.40 : 1,870,650.25 = 782,907.32 : x
  2. Step 2: Convert to fraction form
    1,355,551.40/1,870,650.25 = 782,907.32/x
  3. Step 3: Cross multiply
    1,355,551.40x = 1,870,650.25 × 782,907.32
  4. Step 4: Simplify right side
    1,355,551.40x = 1,464,545,776,604.19
  5. Step 5: Solve for x
    x = 1,464,545,776,604.19/1,355,551.40
  6. Step 6: Final answer
    x = 1,080,405.93

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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.