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Finding the Fourth Proportional to 614,431.55, 921,313.49 and 277,077.29

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Solution

The fourth proportional to 614,431.55, 921,313.49 and 277,077.29 is: 415,465.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,431.55 : 921,313.49 = 277,077.29 : x
  2. Step 2: Convert to fraction form
    614,431.55/921,313.49 = 277,077.29/x
  3. Step 3: Cross multiply
    614,431.55x = 921,313.49 × 277,077.29
  4. Step 4: Simplify right side
    614,431.55x = 255,275,039,057.69
  5. Step 5: Solve for x
    x = 255,275,039,057.69/614,431.55
  6. Step 6: Final answer
    x = 415,465.39

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1.5x scale

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.