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Finding the Fourth Proportional to 565,418.10, 780,283.00 and 307,295.04

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Solution

The fourth proportional to 565,418.10, 780,283.00 and 307,295.04 is: 424,070.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,418.10 : 780,283.00 = 307,295.04 : x
  2. Step 2: Convert to fraction form
    565,418.10/780,283.00 = 307,295.04/x
  3. Step 3: Cross multiply
    565,418.10x = 780,283.00 × 307,295.04
  4. Step 4: Simplify right side
    565,418.10x = 239,777,099,006.50
  5. Step 5: Solve for x
    x = 239,777,099,006.50/565,418.10
  6. Step 6: Final answer
    x = 424,070.44

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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.