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Finding the Fourth Proportional to 620,027.20, 930,127.20 and 265,038.40

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Solution

The fourth proportional to 620,027.20, 930,127.20 and 265,038.40 is: 397,594.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,027.20 : 930,127.20 = 265,038.40 : x
  2. Step 2: Convert to fraction form
    620,027.20/930,127.20 = 265,038.40/x
  3. Step 3: Cross multiply
    620,027.20x = 930,127.20 × 265,038.40
  4. Step 4: Simplify right side
    620,027.20x = 246,519,424,884.48
  5. Step 5: Solve for x
    x = 246,519,424,884.48/620,027.20
  6. Step 6: Final answer
    x = 397,594.53

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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.