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Finding the Fourth Proportional to 579,681.60, 813,028.80 and 579,681.60

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Solution

The fourth proportional to 579,681.60, 813,028.80 and 579,681.60 is: 813,028.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,681.60 : 813,028.80 = 579,681.60 : x
  2. Step 2: Convert to fraction form
    579,681.60/813,028.80 = 579,681.60/x
  3. Step 3: Cross multiply
    579,681.60x = 813,028.80 × 579,681.60
  4. Step 4: Simplify right side
    579,681.60x = 471,297,835,630.08
  5. Step 5: Solve for x
    x = 471,297,835,630.08/579,681.60
  6. Step 6: Final answer
    x = 813,028.80

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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 (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.