Home / 781,692.53-1,076,497.16-671,910.59

Finding the Fourth Proportional to 781,692.53, 1,076,497.16 and 671,910.59

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Solution

The fourth proportional to 781,692.53, 1,076,497.16 and 671,910.59 is: 925,312.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,692.53 : 1,076,497.16 = 671,910.59 : x
  2. Step 2: Convert to fraction form
    781,692.53/1,076,497.16 = 671,910.59/x
  3. Step 3: Cross multiply
    781,692.53x = 1,076,497.16 × 671,910.59
  4. Step 4: Simplify right side
    781,692.53x = 723,309,841,240.61
  5. Step 5: Solve for x
    x = 723,309,841,240.61/781,692.53
  6. Step 6: Final answer
    x = 925,312.47

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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.