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Finding the Fourth Proportional to 554,459.30, 830,522.55 and 461,147.30

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Solution

The fourth proportional to 554,459.30, 830,522.55 and 461,147.30 is: 690,750.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,459.30 : 830,522.55 = 461,147.30 : x
  2. Step 2: Convert to fraction form
    554,459.30/830,522.55 = 461,147.30/x
  3. Step 3: Cross multiply
    554,459.30x = 830,522.55 × 461,147.30
  4. Step 4: Simplify right side
    554,459.30x = 382,993,231,521.62
  5. Step 5: Solve for x
    x = 382,993,231,521.62/554,459.30
  6. Step 6: Final answer
    x = 690,750.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.