Home / 1,429,781.69-1,973,091.58-776,401.90

Finding the Fourth Proportional to 1,429,781.69, 1,973,091.58 and 776,401.90

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Solution

The fourth proportional to 1,429,781.69, 1,973,091.58 and 776,401.90 is: 1,071,430.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,781.69 : 1,973,091.58 = 776,401.90 : x
  2. Step 2: Convert to fraction form
    1,429,781.69/1,973,091.58 = 776,401.90/x
  3. Step 3: Cross multiply
    1,429,781.69x = 1,973,091.58 × 776,401.90
  4. Step 4: Simplify right side
    1,429,781.69x = 1,531,912,051,586.00
  5. Step 5: Solve for x
    x = 1,531,912,051,586.00/1,429,781.69
  6. Step 6: Final answer
    x = 1,071,430.74

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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.