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Finding the Fourth Proportional to 657,535.72, 907,485.54 and 488,253.16

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Solution

The fourth proportional to 657,535.72, 907,485.54 and 488,253.16 is: 673,853.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,535.72 : 907,485.54 = 488,253.16 : x
  2. Step 2: Convert to fraction form
    657,535.72/907,485.54 = 488,253.16/x
  3. Step 3: Cross multiply
    657,535.72x = 907,485.54 × 488,253.16
  4. Step 4: Simplify right side
    657,535.72x = 443,082,682,559.31
  5. Step 5: Solve for x
    x = 443,082,682,559.31/657,535.72
  6. Step 6: Final answer
    x = 673,853.40

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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.