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Finding the Fourth Proportional to 600,655, 828,903.76 and 328,723

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Solution

The fourth proportional to 600,655, 828,903.76 and 328,723 is: 453,637.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    600,655 : 828,903.76 = 328,723 : x
  2. Step 2: Convert to fraction form
    600,655/828,903.76 = 328,723/x
  3. Step 3: Cross multiply
    600,655x = 828,903.76 × 328,723
  4. Step 4: Simplify right side
    600,655x = 272,479,730,698.48
  5. Step 5: Solve for x
    x = 272,479,730,698.48/600,655
  6. Step 6: Final answer
    x = 453,637.66

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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.