Home / 674,547.40-1,011,878.70-231,315.40

Finding the Fourth Proportional to 674,547.40, 1,011,878.70 and 231,315.40

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Solution

The fourth proportional to 674,547.40, 1,011,878.70 and 231,315.40 is: 346,992.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,547.40 : 1,011,878.70 = 231,315.40 : x
  2. Step 2: Convert to fraction form
    674,547.40/1,011,878.70 = 231,315.40/x
  3. Step 3: Cross multiply
    674,547.40x = 1,011,878.70 × 231,315.40
  4. Step 4: Simplify right side
    674,547.40x = 234,063,126,241.98
  5. Step 5: Solve for x
    x = 234,063,126,241.98/674,547.40
  6. Step 6: Final answer
    x = 346,992.85

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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.