Home / 674,311.40-930,568.02-402,537.09

Finding the Fourth Proportional to 674,311.40, 930,568.02 and 402,537.09

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Solution

The fourth proportional to 674,311.40, 930,568.02 and 402,537.09 is: 555,512.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,311.40 : 930,568.02 = 402,537.09 : x
  2. Step 2: Convert to fraction form
    674,311.40/930,568.02 = 402,537.09/x
  3. Step 3: Cross multiply
    674,311.40x = 930,568.02 × 402,537.09
  4. Step 4: Simplify right side
    674,311.40x = 374,588,142,817.86
  5. Step 5: Solve for x
    x = 374,588,142,817.86/674,311.40
  6. Step 6: Final answer
    x = 555,512.10

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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.