Home / 712,936.20-1,069,404.30-447,515.40

Finding the Fourth Proportional to 712,936.20, 1,069,404.30 and 447,515.40

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Solution

The fourth proportional to 712,936.20, 1,069,404.30 and 447,515.40 is: 671,273.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,936.20 : 1,069,404.30 = 447,515.40 : x
  2. Step 2: Convert to fraction form
    712,936.20/1,069,404.30 = 447,515.40/x
  3. Step 3: Cross multiply
    712,936.20x = 1,069,404.30 × 447,515.40
  4. Step 4: Simplify right side
    712,936.20x = 478,574,893,076.22
  5. Step 5: Solve for x
    x = 478,574,893,076.22/712,936.20
  6. Step 6: Final answer
    x = 671,273.10

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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.