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Finding the Fourth Proportional to 610,435.42, 842,384.93 and 338,502.47

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Solution

The fourth proportional to 610,435.42, 842,384.93 and 338,502.47 is: 467,124.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,435.42 : 842,384.93 = 338,502.47 : x
  2. Step 2: Convert to fraction form
    610,435.42/842,384.93 = 338,502.47/x
  3. Step 3: Cross multiply
    610,435.42x = 842,384.93 × 338,502.47
  4. Step 4: Simplify right side
    610,435.42x = 285,149,373,591.34
  5. Step 5: Solve for x
    x = 285,149,373,591.34/610,435.42
  6. Step 6: Final answer
    x = 467,124.56

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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.