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Finding the Fourth Proportional to 757,896, 1,045,876.32 and 418,356.96

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Solution

The fourth proportional to 757,896, 1,045,876.32 and 418,356.96 is: 577,321.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,896 : 1,045,876.32 = 418,356.96 : x
  2. Step 2: Convert to fraction form
    757,896/1,045,876.32 = 418,356.96/x
  3. Step 3: Cross multiply
    757,896x = 1,045,876.32 × 418,356.96
  4. Step 4: Simplify right side
    757,896x = 437,549,637,771.19
  5. Step 5: Solve for x
    x = 437,549,637,771.19/757,896
  6. Step 6: Final answer
    x = 577,321.48

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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.