Home / 928,008.58-1,280,758.08-520,220.56

Finding the Fourth Proportional to 928,008.58, 1,280,758.08 and 520,220.56

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Solution

The fourth proportional to 928,008.58, 1,280,758.08 and 520,220.56 is: 717,963.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,008.58 : 1,280,758.08 = 520,220.56 : x
  2. Step 2: Convert to fraction form
    928,008.58/1,280,758.08 = 520,220.56/x
  3. Step 3: Cross multiply
    928,008.58x = 1,280,758.08 × 520,220.56
  4. Step 4: Simplify right side
    928,008.58x = 666,276,685,602.13
  5. Step 5: Solve for x
    x = 666,276,685,602.13/928,008.58
  6. Step 6: Final answer
    x = 717,963.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.