Home / 1,421,264.34-1,961,370.45-776,711.70

Finding the Fourth Proportional to 1,421,264.34, 1,961,370.45 and 776,711.70

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Solution

The fourth proportional to 1,421,264.34, 1,961,370.45 and 776,711.70 is: 1,071,876.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,264.34 : 1,961,370.45 = 776,711.70 : x
  2. Step 2: Convert to fraction form
    1,421,264.34/1,961,370.45 = 776,711.70/x
  3. Step 3: Cross multiply
    1,421,264.34x = 1,961,370.45 × 776,711.70
  4. Step 4: Simplify right side
    1,421,264.34x = 1,523,419,376,549.27
  5. Step 5: Solve for x
    x = 1,523,419,376,549.27/1,421,264.34
  6. Step 6: Final answer
    x = 1,071,876.17

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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.