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Finding the Fourth Proportional to 648,485.99, 894,842.66 and 376,500.76

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Solution

The fourth proportional to 648,485.99, 894,842.66 and 376,500.76 is: 519,531.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,485.99 : 894,842.66 = 376,500.76 : x
  2. Step 2: Convert to fraction form
    648,485.99/894,842.66 = 376,500.76/x
  3. Step 3: Cross multiply
    648,485.99x = 894,842.66 × 376,500.76
  4. Step 4: Simplify right side
    648,485.99x = 336,908,944,613.61
  5. Step 5: Solve for x
    x = 336,908,944,613.61/648,485.99
  6. Step 6: Final answer
    x = 519,531.57

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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.