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Finding the Fourth Proportional to 666,401.24, 918,677.19 and 475,082.48

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Solution

The fourth proportional to 666,401.24, 918,677.19 and 475,082.48 is: 654,931.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,401.24 : 918,677.19 = 475,082.48 : x
  2. Step 2: Convert to fraction form
    666,401.24/918,677.19 = 475,082.48/x
  3. Step 3: Cross multiply
    666,401.24x = 918,677.19 × 475,082.48
  4. Step 4: Simplify right side
    666,401.24x = 436,447,441,822.88
  5. Step 5: Solve for x
    x = 436,447,441,822.88/666,401.24
  6. Step 6: Final answer
    x = 654,931.91

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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.