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Finding the Fourth Proportional to 637,909.74, 880,132.77 and 379,570.77

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Solution

The fourth proportional to 637,909.74, 880,132.77 and 379,570.77 is: 523,698.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,909.74 : 880,132.77 = 379,570.77 : x
  2. Step 2: Convert to fraction form
    637,909.74/880,132.77 = 379,570.77/x
  3. Step 3: Cross multiply
    637,909.74x = 880,132.77 × 379,570.77
  4. Step 4: Simplify right side
    637,909.74x = 334,072,673,211.13
  5. Step 5: Solve for x
    x = 334,072,673,211.13/637,909.74
  6. Step 6: Final answer
    x = 523,698.97

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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.