Home / 1,355,552.40-1,870,651.63-782,908.32

Finding the Fourth Proportional to 1,355,552.40, 1,870,651.63 and 782,908.32

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Solution

The fourth proportional to 1,355,552.40, 1,870,651.63 and 782,908.32 is: 1,080,407.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,552.40 : 1,870,651.63 = 782,908.32 : x
  2. Step 2: Convert to fraction form
    1,355,552.40/1,870,651.63 = 782,908.32/x
  3. Step 3: Cross multiply
    1,355,552.40x = 1,870,651.63 × 782,908.32
  4. Step 4: Simplify right side
    1,355,552.40x = 1,464,548,724,948.56
  5. Step 5: Solve for x
    x = 1,464,548,724,948.56/1,355,552.40
  6. Step 6: Final answer
    x = 1,080,407.31

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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.