Home / 1,421,266.34-1,961,373.21-776,713.70

Finding the Fourth Proportional to 1,421,266.34, 1,961,373.21 and 776,713.70

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Solution

The fourth proportional to 1,421,266.34, 1,961,373.21 and 776,713.70 is: 1,071,878.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,266.34 : 1,961,373.21 = 776,713.70 : x
  2. Step 2: Convert to fraction form
    1,421,266.34/1,961,373.21 = 776,713.70/x
  3. Step 3: Cross multiply
    1,421,266.34x = 1,961,373.21 × 776,713.70
  4. Step 4: Simplify right side
    1,421,266.34x = 1,523,425,443,019.98
  5. Step 5: Solve for x
    x = 1,523,425,443,019.98/1,421,266.34
  6. Step 6: Final answer
    x = 1,071,878.93

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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.