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Finding the Fourth Proportional to 637,728.27, 880,127.10 and 476,303.01

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Solution

The fourth proportional to 637,728.27, 880,127.10 and 476,303.01 is: 657,344.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,728.27 : 880,127.10 = 476,303.01 : x
  2. Step 2: Convert to fraction form
    637,728.27/880,127.10 = 476,303.01/x
  3. Step 3: Cross multiply
    637,728.27x = 880,127.10 × 476,303.01
  4. Step 4: Simplify right side
    637,728.27x = 419,207,186,912.57
  5. Step 5: Solve for x
    x = 419,207,186,912.57/637,728.27
  6. Step 6: Final answer
    x = 657,344.53

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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.