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Finding the Fourth Proportional to 637,571.84, 879,851.68 and 382,927.36

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Solution

The fourth proportional to 637,571.84, 879,851.68 and 382,927.36 is: 528,441.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,571.84 : 879,851.68 = 382,927.36 : x
  2. Step 2: Convert to fraction form
    637,571.84/879,851.68 = 382,927.36/x
  3. Step 3: Cross multiply
    637,571.84x = 879,851.68 × 382,927.36
  4. Step 4: Simplify right side
    637,571.84x = 336,919,281,013.97
  5. Step 5: Solve for x
    x = 336,919,281,013.97/637,571.84
  6. Step 6: Final answer
    x = 528,441.28

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Double scale
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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.