Home / 870,957.54-1,306,424.73-421,718.58

Finding the Fourth Proportional to 870,957.54, 1,306,424.73 and 421,718.58

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Solution

The fourth proportional to 870,957.54, 1,306,424.73 and 421,718.58 is: 632,572.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,957.54 : 1,306,424.73 = 421,718.58 : x
  2. Step 2: Convert to fraction form
    870,957.54/1,306,424.73 = 421,718.58/x
  3. Step 3: Cross multiply
    870,957.54x = 1,306,424.73 × 421,718.58
  4. Step 4: Simplify right side
    870,957.54x = 550,943,582,012.48
  5. Step 5: Solve for x
    x = 550,943,582,012.48/870,957.54
  6. Step 6: Final answer
    x = 632,572.26

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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.