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Finding the Fourth Proportional to 630,363.73, 869,782.98 and 375,738.61

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Solution

The fourth proportional to 630,363.73, 869,782.98 and 375,738.61 is: 518,448.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,363.73 : 869,782.98 = 375,738.61 : x
  2. Step 2: Convert to fraction form
    630,363.73/869,782.98 = 375,738.61/x
  3. Step 3: Cross multiply
    630,363.73x = 869,782.98 × 375,738.61
  4. Step 4: Simplify right side
    630,363.73x = 326,811,046,028.17
  5. Step 5: Solve for x
    x = 326,811,046,028.17/630,363.73
  6. Step 6: Final answer
    x = 518,448.37

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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.