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Finding the Fourth Proportional to 637,721, 880,117.08 and 476,295.76

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Solution

The fourth proportional to 637,721, 880,117.08 and 476,295.76 is: 657,334.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,721 : 880,117.08 = 476,295.76 : x
  2. Step 2: Convert to fraction form
    637,721/880,117.08 = 476,295.76/x
  3. Step 3: Cross multiply
    637,721x = 880,117.08 × 476,295.76
  4. Step 4: Simplify right side
    637,721x = 419,196,033,507.58
  5. Step 5: Solve for x
    x = 419,196,033,507.58/637,721
  6. Step 6: Final answer
    x = 657,334.53

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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.