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Finding the Fourth Proportional to 500,888.90, 691,331.10 and 460,538.72

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Solution

The fourth proportional to 500,888.90, 691,331.10 and 460,538.72 is: 635,639.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,888.90 : 691,331.10 = 460,538.72 : x
  2. Step 2: Convert to fraction form
    500,888.90/691,331.10 = 460,538.72/x
  3. Step 3: Cross multiply
    500,888.90x = 691,331.10 × 460,538.72
  4. Step 4: Simplify right side
    500,888.90x = 318,384,739,890.19
  5. Step 5: Solve for x
    x = 318,384,739,890.19/500,888.90
  6. Step 6: Final answer
    x = 635,639.44

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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.