Home / 672,739.06-1,007,966.67-405,938.95

Finding the Fourth Proportional to 672,739.06, 1,007,966.67 and 405,938.95

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Solution

The fourth proportional to 672,739.06, 1,007,966.67 and 405,938.95 is: 608,219.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,739.06 : 1,007,966.67 = 405,938.95 : x
  2. Step 2: Convert to fraction form
    672,739.06/1,007,966.67 = 405,938.95/x
  3. Step 3: Cross multiply
    672,739.06x = 1,007,966.67 × 405,938.95
  4. Step 4: Simplify right side
    672,739.06x = 409,172,931,654.80
  5. Step 5: Solve for x
    x = 409,172,931,654.80/672,739.06
  6. Step 6: Final answer
    x = 608,219.38

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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.