Home / 1,036,687.05-1,555,030.58-438,323.85

Finding the Fourth Proportional to 1,036,687.05, 1,555,030.58 and 438,323.85

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Solution

The fourth proportional to 1,036,687.05, 1,555,030.58 and 438,323.85 is: 657,485.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036,687.05 : 1,555,030.58 = 438,323.85 : x
  2. Step 2: Convert to fraction form
    1,036,687.05/1,555,030.58 = 438,323.85/x
  3. Step 3: Cross multiply
    1,036,687.05x = 1,555,030.58 × 438,323.85
  4. Step 4: Simplify right side
    1,036,687.05x = 681,606,988,501.71
  5. Step 5: Solve for x
    x = 681,606,988,501.71/1,036,687.05
  6. Step 6: Final answer
    x = 657,485.78

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Double scale
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Similar ratio
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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.