Home / 1,231,500.60-1,699,499.67-687,618

Finding the Fourth Proportional to 1,231,500.60, 1,699,499.67 and 687,618

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Solution

The fourth proportional to 1,231,500.60, 1,699,499.67 and 687,618 is: 948,928.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,500.60 : 1,699,499.67 = 687,618 : x
  2. Step 2: Convert to fraction form
    1,231,500.60/1,699,499.67 = 687,618/x
  3. Step 3: Cross multiply
    1,231,500.60x = 1,699,499.67 × 687,618
  4. Step 4: Simplify right side
    1,231,500.60x = 1,168,606,564,086.06
  5. Step 5: Solve for x
    x = 1,168,606,564,086.06/1,231,500.60
  6. Step 6: Final answer
    x = 948,928.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.