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Finding the Fourth Proportional to 637,686.74, 880,047.50 and 351,206.75

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Solution

The fourth proportional to 637,686.74, 880,047.50 and 351,206.75 is: 484,687.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,686.74 : 880,047.50 = 351,206.75 : x
  2. Step 2: Convert to fraction form
    637,686.74/880,047.50 = 351,206.75/x
  3. Step 3: Cross multiply
    637,686.74x = 880,047.50 × 351,206.75
  4. Step 4: Simplify right side
    637,686.74x = 309,078,616,164.35
  5. Step 5: Solve for x
    x = 309,078,616,164.35/637,686.74
  6. Step 6: Final answer
    x = 484,687.23

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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.