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Finding the Fourth Proportional to 604,269.90, 905,368.05 and 288,045.90

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Solution

The fourth proportional to 604,269.90, 905,368.05 and 288,045.90 is: 431,574.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,269.90 : 905,368.05 = 288,045.90 : x
  2. Step 2: Convert to fraction form
    604,269.90/905,368.05 = 288,045.90/x
  3. Step 3: Cross multiply
    604,269.90x = 905,368.05 × 288,045.90
  4. Step 4: Simplify right side
    604,269.90x = 260,787,554,793.50
  5. Step 5: Solve for x
    x = 260,787,554,793.50/604,269.90
  6. Step 6: Final answer
    x = 431,574.62

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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.