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Finding the Fourth Proportional to 865,506.60, 1,298,259.72 and 360,057.96

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Solution

The fourth proportional to 865,506.60, 1,298,259.72 and 360,057.96 is: 540,086.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,506.60 : 1,298,259.72 = 360,057.96 : x
  2. Step 2: Convert to fraction form
    865,506.60/1,298,259.72 = 360,057.96/x
  3. Step 3: Cross multiply
    865,506.60x = 1,298,259.72 × 360,057.96
  4. Step 4: Simplify right side
    865,506.60x = 467,448,746,333.37
  5. Step 5: Solve for x
    x = 467,448,746,333.37/865,506.60
  6. Step 6: Final answer
    x = 540,086.87

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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.