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Finding the Fourth Proportional to 423,475.07, 634,651.93 and 310,626.90

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Solution

The fourth proportional to 423,475.07, 634,651.93 and 310,626.90 is: 465,529.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,475.07 : 634,651.93 = 310,626.90 : x
  2. Step 2: Convert to fraction form
    423,475.07/634,651.93 = 310,626.90/x
  3. Step 3: Cross multiply
    423,475.07x = 634,651.93 × 310,626.90
  4. Step 4: Simplify right side
    423,475.07x = 197,139,960,235.92
  5. Step 5: Solve for x
    x = 197,139,960,235.92/423,475.07
  6. Step 6: Final answer
    x = 465,529.08

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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.