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Finding the Fourth Proportional to 460,473.82, 690,809.55 and 260,889.82

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Solution

The fourth proportional to 460,473.82, 690,809.55 and 260,889.82 is: 391,390.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,473.82 : 690,809.55 = 260,889.82 : x
  2. Step 2: Convert to fraction form
    460,473.82/690,809.55 = 260,889.82/x
  3. Step 3: Cross multiply
    460,473.82x = 690,809.55 × 260,889.82
  4. Step 4: Simplify right side
    460,473.82x = 180,225,179,153.78
  5. Step 5: Solve for x
    x = 180,225,179,153.78/460,473.82
  6. Step 6: Final answer
    x = 391,390.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.