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Finding the Fourth Proportional to 604,340.70, 905,733.45 and 288,116.70

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Solution

The fourth proportional to 604,340.70, 905,733.45 and 288,116.70 is: 431,804.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,340.70 : 905,733.45 = 288,116.70 : x
  2. Step 2: Convert to fraction form
    604,340.70/905,733.45 = 288,116.70/x
  3. Step 3: Cross multiply
    604,340.70x = 905,733.45 × 288,116.70
  4. Step 4: Simplify right side
    604,340.70x = 260,956,932,693.62
  5. Step 5: Solve for x
    x = 260,956,932,693.62/604,340.70
  6. Step 6: Final answer
    x = 431,804.33

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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.