Home / 870,290.73-1,305,140.47-301,539.08

Finding the Fourth Proportional to 870,290.73, 1,305,140.47 and 301,539.08

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Solution

The fourth proportional to 870,290.73, 1,305,140.47 and 301,539.08 is: 452,206.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,290.73 : 1,305,140.47 = 301,539.08 : x
  2. Step 2: Convert to fraction form
    870,290.73/1,305,140.47 = 301,539.08/x
  3. Step 3: Cross multiply
    870,290.73x = 1,305,140.47 × 301,539.08
  4. Step 4: Simplify right side
    870,290.73x = 393,550,859,103.57
  5. Step 5: Solve for x
    x = 393,550,859,103.57/870,290.73
  6. Step 6: Final answer
    x = 452,206.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.