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Finding the Fourth Proportional to 559,692.55, 772,393.77 and 317,970.73

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Solution

The fourth proportional to 559,692.55, 772,393.77 and 317,970.73 is: 438,809.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,692.55 : 772,393.77 = 317,970.73 : x
  2. Step 2: Convert to fraction form
    559,692.55/772,393.77 = 317,970.73/x
  3. Step 3: Cross multiply
    559,692.55x = 772,393.77 × 317,970.73
  4. Step 4: Simplify right side
    559,692.55x = 245,598,610,894.35
  5. Step 5: Solve for x
    x = 245,598,610,894.35/559,692.55
  6. Step 6: Final answer
    x = 438,809.86

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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.