Home / 637,783.20-880,142.02-347,393.87

Finding the Fourth Proportional to 637,783.20, 880,142.02 and 347,393.87

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Solution

The fourth proportional to 637,783.20, 880,142.02 and 347,393.87 is: 479,404.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,783.20 : 880,142.02 = 347,393.87 : x
  2. Step 2: Convert to fraction form
    637,783.20/880,142.02 = 347,393.87/x
  3. Step 3: Cross multiply
    637,783.20x = 880,142.02 × 347,393.87
  4. Step 4: Simplify right side
    637,783.20x = 305,755,940,508.76
  5. Step 5: Solve for x
    x = 305,755,940,508.76/637,783.20
  6. Step 6: Final answer
    x = 479,404.19

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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.