Home / 1,260,306.96-1,890,706.48-407,590.40

Finding the Fourth Proportional to 1,260,306.96, 1,890,706.48 and 407,590.40

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Solution

The fourth proportional to 1,260,306.96, 1,890,706.48 and 407,590.40 is: 611,465.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,306.96 : 1,890,706.48 = 407,590.40 : x
  2. Step 2: Convert to fraction form
    1,260,306.96/1,890,706.48 = 407,590.40/x
  3. Step 3: Cross multiply
    1,260,306.96x = 1,890,706.48 × 407,590.40
  4. Step 4: Simplify right side
    1,260,306.96x = 770,633,810,465.79
  5. Step 5: Solve for x
    x = 770,633,810,465.79/1,260,306.96
  6. Step 6: Final answer
    x = 611,465.17

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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.