Home / 1,420,608.70-1,960,482.18-776,039.59

Finding the Fourth Proportional to 1,420,608.70, 1,960,482.18 and 776,039.59

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Solution

The fourth proportional to 1,420,608.70, 1,960,482.18 and 776,039.59 is: 1,070,957.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,608.70 : 1,960,482.18 = 776,039.59 : x
  2. Step 2: Convert to fraction form
    1,420,608.70/1,960,482.18 = 776,039.59/x
  3. Step 3: Cross multiply
    1,420,608.70x = 1,960,482.18 × 776,039.59
  4. Step 4: Simplify right side
    1,420,608.70x = 1,521,411,787,169.51
  5. Step 5: Solve for x
    x = 1,521,411,787,169.51/1,420,608.70
  6. Step 6: Final answer
    x = 1,070,957.67

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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.