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Finding the Fourth Proportional to 565,551.33, 780,475.77 and 307,445.64

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Solution

The fourth proportional to 565,551.33, 780,475.77 and 307,445.64 is: 424,283.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,551.33 : 780,475.77 = 307,445.64 : x
  2. Step 2: Convert to fraction form
    565,551.33/780,475.77 = 307,445.64/x
  3. Step 3: Cross multiply
    565,551.33x = 780,475.77 × 307,445.64
  4. Step 4: Simplify right side
    565,551.33x = 239,953,872,612.14
  5. Step 5: Solve for x
    x = 239,953,872,612.14/565,551.33
  6. Step 6: Final answer
    x = 424,283.10

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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.