Home / 870,142.70-1,306,198.20-470,577.80

Finding the Fourth Proportional to 870,142.70, 1,306,198.20 and 470,577.80

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Solution

The fourth proportional to 870,142.70, 1,306,198.20 and 470,577.80 is: 706,398.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,142.70 : 1,306,198.20 = 470,577.80 : x
  2. Step 2: Convert to fraction form
    870,142.70/1,306,198.20 = 470,577.80/x
  3. Step 3: Cross multiply
    870,142.70x = 1,306,198.20 × 470,577.80
  4. Step 4: Simplify right side
    870,142.70x = 614,667,875,319.96
  5. Step 5: Solve for x
    x = 614,667,875,319.96/870,142.70
  6. Step 6: Final answer
    x = 706,398.93

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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.