Home / 870,015.69-1,304,609.36-357,600.78

Finding the Fourth Proportional to 870,015.69, 1,304,609.36 and 357,600.78

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Solution

The fourth proportional to 870,015.69, 1,304,609.36 and 357,600.78 is: 536,230.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,015.69 : 1,304,609.36 = 357,600.78 : x
  2. Step 2: Convert to fraction form
    870,015.69/1,304,609.36 = 357,600.78/x
  3. Step 3: Cross multiply
    870,015.69x = 1,304,609.36 × 357,600.78
  4. Step 4: Simplify right side
    870,015.69x = 466,529,322,943.30
  5. Step 5: Solve for x
    x = 466,529,322,943.30/870,015.69
  6. Step 6: Final answer
    x = 536,230.93

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1.5x scale

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.