Home / 666,442.06-918,733.35-475,123.30

Finding the Fourth Proportional to 666,442.06, 918,733.35 and 475,123.30

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Solution

The fourth proportional to 666,442.06, 918,733.35 and 475,123.30 is: 654,988.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,442.06 : 918,733.35 = 475,123.30 : x
  2. Step 2: Convert to fraction form
    666,442.06/918,733.35 = 475,123.30/x
  3. Step 3: Cross multiply
    666,442.06x = 918,733.35 × 475,123.30
  4. Step 4: Simplify right side
    666,442.06x = 436,511,621,072.06
  5. Step 5: Solve for x
    x = 436,511,621,072.06/666,442.06
  6. Step 6: Final answer
    x = 654,988.10

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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.