Home / 712,920.84-1,069,381.26-239,606.20

Finding the Fourth Proportional to 712,920.84, 1,069,381.26 and 239,606.20

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Solution

The fourth proportional to 712,920.84, 1,069,381.26 and 239,606.20 is: 359,409.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,920.84 : 1,069,381.26 = 239,606.20 : x
  2. Step 2: Convert to fraction form
    712,920.84/1,069,381.26 = 239,606.20/x
  3. Step 3: Cross multiply
    712,920.84x = 1,069,381.26 × 239,606.20
  4. Step 4: Simplify right side
    712,920.84x = 256,230,380,059.81
  5. Step 5: Solve for x
    x = 256,230,380,059.81/712,920.84
  6. Step 6: Final answer
    x = 359,409.30

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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.