Home / 1,420,923.17-1,960,902.18-776,383.35

Finding the Fourth Proportional to 1,420,923.17, 1,960,902.18 and 776,383.35

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Solution

The fourth proportional to 1,420,923.17, 1,960,902.18 and 776,383.35 is: 1,071,424.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,923.17 : 1,960,902.18 = 776,383.35 : x
  2. Step 2: Convert to fraction form
    1,420,923.17/1,960,902.18 = 776,383.35/x
  3. Step 3: Cross multiply
    1,420,923.17x = 1,960,902.18 × 776,383.35
  4. Step 4: Simplify right side
    1,420,923.17x = 1,522,411,803,530.70
  5. Step 5: Solve for x
    x = 1,522,411,803,530.70/1,420,923.17
  6. Step 6: Final answer
    x = 1,071,424.44

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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.