Home / 756,009.40-1,134,014.10-456,827.80

Finding the Fourth Proportional to 756,009.40, 1,134,014.10 and 456,827.80

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Solution

The fourth proportional to 756,009.40, 1,134,014.10 and 456,827.80 is: 685,241.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,009.40 : 1,134,014.10 = 456,827.80 : x
  2. Step 2: Convert to fraction form
    756,009.40/1,134,014.10 = 456,827.80/x
  3. Step 3: Cross multiply
    756,009.40x = 1,134,014.10 × 456,827.80
  4. Step 4: Simplify right side
    756,009.40x = 518,049,166,471.98
  5. Step 5: Solve for x
    x = 518,049,166,471.98/756,009.40
  6. Step 6: Final answer
    x = 685,241.70

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Double scale
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Similar ratio
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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.