Home / 672,836.79-1,008,112.71-406,036.70

Finding the Fourth Proportional to 672,836.79, 1,008,112.71 and 406,036.70

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Solution

The fourth proportional to 672,836.79, 1,008,112.71 and 406,036.70 is: 608,365.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,836.79 : 1,008,112.71 = 406,036.70 : x
  2. Step 2: Convert to fraction form
    672,836.79/1,008,112.71 = 406,036.70/x
  3. Step 3: Cross multiply
    672,836.79x = 1,008,112.71 × 406,036.70
  4. Step 4: Simplify right side
    672,836.79x = 409,330,752,955.89
  5. Step 5: Solve for x
    x = 409,330,752,955.89/672,836.79
  6. Step 6: Final answer
    x = 608,365.59

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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.