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Finding the Fourth Proportional to 800,430.65, 1,104,620.64 and 437,846.21

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Solution

The fourth proportional to 800,430.65, 1,104,620.64 and 437,846.21 is: 604,242.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,430.65 : 1,104,620.64 = 437,846.21 : x
  2. Step 2: Convert to fraction form
    800,430.65/1,104,620.64 = 437,846.21/x
  3. Step 3: Cross multiply
    800,430.65x = 1,104,620.64 × 437,846.21
  4. Step 4: Simplify right side
    800,430.65x = 483,653,960,711.77
  5. Step 5: Solve for x
    x = 483,653,960,711.77/800,430.65
  6. Step 6: Final answer
    x = 604,242.18

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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.