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Finding the Fourth Proportional to 554,450.30, 830,509.05 and 461,138.30

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Solution

The fourth proportional to 554,450.30, 830,509.05 and 461,138.30 is: 690,737.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,450.30 : 830,509.05 = 461,138.30 : x
  2. Step 2: Convert to fraction form
    554,450.30/830,509.05 = 461,138.30/x
  3. Step 3: Cross multiply
    554,450.30x = 830,509.05 × 461,138.30
  4. Step 4: Simplify right side
    554,450.30x = 382,979,531,451.62
  5. Step 5: Solve for x
    x = 382,979,531,451.62/554,450.30
  6. Step 6: Final answer
    x = 690,737.35

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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.