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Finding the Fourth Proportional to 660,123.46, 910,903.89 and 373,593.66

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Solution

The fourth proportional to 660,123.46, 910,903.89 and 373,593.66 is: 515,521.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,123.46 : 910,903.89 = 373,593.66 : x
  2. Step 2: Convert to fraction form
    660,123.46/910,903.89 = 373,593.66/x
  3. Step 3: Cross multiply
    660,123.46x = 910,903.89 × 373,593.66
  4. Step 4: Simplify right side
    660,123.46x = 340,307,918,173.34
  5. Step 5: Solve for x
    x = 340,307,918,173.34/660,123.46
  6. Step 6: Final answer
    x = 515,521.62

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1.5x scale

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.