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Finding the Fourth Proportional to 565,087.63, 779,817.21 and 306,962.23

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Solution

The fourth proportional to 565,087.63, 779,817.21 and 306,962.23 is: 423,605.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,087.63 : 779,817.21 = 306,962.23 : x
  2. Step 2: Convert to fraction form
    565,087.63/779,817.21 = 306,962.23/x
  3. Step 3: Cross multiply
    565,087.63x = 779,817.21 × 306,962.23
  4. Step 4: Simplify right side
    565,087.63x = 239,374,429,773.98
  5. Step 5: Solve for x
    x = 239,374,429,773.98/565,087.63
  6. Step 6: Final answer
    x = 423,605.86

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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.