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Finding the Fourth Proportional to 657,393.42, 907,245.72 and 370,808.94

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Solution

The fourth proportional to 657,393.42, 907,245.72 and 370,808.94 is: 511,740.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,393.42 : 907,245.72 = 370,808.94 : x
  2. Step 2: Convert to fraction form
    657,393.42/907,245.72 = 370,808.94/x
  3. Step 3: Cross multiply
    657,393.42x = 907,245.72 × 370,808.94
  4. Step 4: Simplify right side
    657,393.42x = 336,414,823,752.74
  5. Step 5: Solve for x
    x = 336,414,823,752.74/657,393.42
  6. Step 6: Final answer
    x = 511,740.48

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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.