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Finding the Fourth Proportional to 691,401.88, 953,795.47 and 462,015.48

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Solution

The fourth proportional to 691,401.88, 953,795.47 and 462,015.48 is: 637,354.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,401.88 : 953,795.47 = 462,015.48 : x
  2. Step 2: Convert to fraction form
    691,401.88/953,795.47 = 462,015.48/x
  3. Step 3: Cross multiply
    691,401.88x = 953,795.47 × 462,015.48
  4. Step 4: Simplify right side
    691,401.88x = 440,668,271,891.45
  5. Step 5: Solve for x
    x = 440,668,271,891.45/691,401.88
  6. Step 6: Final answer
    x = 637,354.75

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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.