Home / 768,137.77-1,060,428.90-561,174.13

Finding the Fourth Proportional to 768,137.77, 1,060,428.90 and 561,174.13

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Solution

The fourth proportional to 768,137.77, 1,060,428.90 and 561,174.13 is: 774,711.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,137.77 : 1,060,428.90 = 561,174.13 : x
  2. Step 2: Convert to fraction form
    768,137.77/1,060,428.90 = 561,174.13/x
  3. Step 3: Cross multiply
    768,137.77x = 1,060,428.90 × 561,174.13
  4. Step 4: Simplify right side
    768,137.77x = 595,085,265,384.36
  5. Step 5: Solve for x
    x = 595,085,265,384.36/768,137.77
  6. Step 6: Final answer
    x = 774,711.63

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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.