Home / 637,440.02-879,403.65-379,265.34

Finding the Fourth Proportional to 637,440.02, 879,403.65 and 379,265.34

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Solution

The fourth proportional to 637,440.02, 879,403.65 and 379,265.34 is: 523,229.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,440.02 : 879,403.65 = 379,265.34 : x
  2. Step 2: Convert to fraction form
    637,440.02/879,403.65 = 379,265.34/x
  3. Step 3: Cross multiply
    637,440.02x = 879,403.65 × 379,265.34
  4. Step 4: Simplify right side
    637,440.02x = 333,527,324,314.49
  5. Step 5: Solve for x
    x = 333,527,324,314.49/637,440.02
  6. Step 6: Final answer
    x = 523,229.35

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Double scale
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Similar ratio
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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.