Home / 1,217,705.04-1,680,435.72-673,880.40

Finding the Fourth Proportional to 1,217,705.04, 1,680,435.72 and 673,880.40

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Solution

The fourth proportional to 1,217,705.04, 1,680,435.72 and 673,880.40 is: 929,956.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,705.04 : 1,680,435.72 = 673,880.40 : x
  2. Step 2: Convert to fraction form
    1,217,705.04/1,680,435.72 = 673,880.40/x
  3. Step 3: Cross multiply
    1,217,705.04x = 1,680,435.72 × 673,880.40
  4. Step 4: Simplify right side
    1,217,705.04x = 1,132,412,695,167.89
  5. Step 5: Solve for x
    x = 1,132,412,695,167.89/1,217,705.04
  6. Step 6: Final answer
    x = 929,956.48

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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.