Home / 1,189,980.58-1,785,320.82-479,642.98

Finding the Fourth Proportional to 1,189,980.58, 1,785,320.82 and 479,642.98

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Solution

The fourth proportional to 1,189,980.58, 1,785,320.82 and 479,642.98 is: 719,605.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,980.58 : 1,785,320.82 = 479,642.98 : x
  2. Step 2: Convert to fraction form
    1,189,980.58/1,785,320.82 = 479,642.98/x
  3. Step 3: Cross multiply
    1,189,980.58x = 1,785,320.82 × 479,642.98
  4. Step 4: Simplify right side
    1,189,980.58x = 856,316,598,360.84
  5. Step 5: Solve for x
    x = 856,316,598,360.84/1,189,980.58
  6. Step 6: Final answer
    x = 719,605.52

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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.