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Finding the Fourth Proportional to 668,060.84, 920,687.57 and 474,477.02

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Solution

The fourth proportional to 668,060.84, 920,687.57 and 474,477.02 is: 653,900.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,060.84 : 920,687.57 = 474,477.02 : x
  2. Step 2: Convert to fraction form
    668,060.84/920,687.57 = 474,477.02/x
  3. Step 3: Cross multiply
    668,060.84x = 920,687.57 × 474,477.02
  4. Step 4: Simplify right side
    668,060.84x = 436,845,087,588.82
  5. Step 5: Solve for x
    x = 436,845,087,588.82/668,060.84
  6. Step 6: Final answer
    x = 653,900.15

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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.