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Finding the Fourth Proportional to 579,246.40, 868,869.60 and 559,892.80

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Solution

The fourth proportional to 579,246.40, 868,869.60 and 559,892.80 is: 839,839.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,246.40 : 868,869.60 = 559,892.80 : x
  2. Step 2: Convert to fraction form
    579,246.40/868,869.60 = 559,892.80/x
  3. Step 3: Cross multiply
    579,246.40x = 868,869.60 × 559,892.80
  4. Step 4: Simplify right side
    579,246.40x = 486,473,833,178.88
  5. Step 5: Solve for x
    x = 486,473,833,178.88/579,246.40
  6. Step 6: Final answer
    x = 839,839.20

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Double scale
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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.