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Finding the Fourth Proportional to 654,673.67, 903,314.19 and 382,688.97

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Solution

The fourth proportional to 654,673.67, 903,314.19 and 382,688.97 is: 528,031.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,673.67 : 903,314.19 = 382,688.97 : x
  2. Step 2: Convert to fraction form
    654,673.67/903,314.19 = 382,688.97/x
  3. Step 3: Cross multiply
    654,673.67x = 903,314.19 × 382,688.97
  4. Step 4: Simplify right side
    654,673.67x = 345,688,376,957.48
  5. Step 5: Solve for x
    x = 345,688,376,957.48/654,673.67
  6. Step 6: Final answer
    x = 528,031.59

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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.