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Finding the Fourth Proportional to 567,259.49, 782,818.23 and 309,136.51

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Solution

The fourth proportional to 567,259.49, 782,818.23 and 309,136.51 is: 426,608.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,259.49 : 782,818.23 = 309,136.51 : x
  2. Step 2: Convert to fraction form
    567,259.49/782,818.23 = 309,136.51/x
  3. Step 3: Cross multiply
    567,259.49x = 782,818.23 × 309,136.51
  4. Step 4: Simplify right side
    567,259.49x = 241,997,695,586.58
  5. Step 5: Solve for x
    x = 241,997,695,586.58/567,259.49
  6. Step 6: Final answer
    x = 426,608.46

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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.