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Finding the Fourth Proportional to 648,524.40, 971,231.40 and 524,108.40

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Solution

The fourth proportional to 648,524.40, 971,231.40 and 524,108.40 is: 784,905.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,524.40 : 971,231.40 = 524,108.40 : x
  2. Step 2: Convert to fraction form
    648,524.40/971,231.40 = 524,108.40/x
  3. Step 3: Cross multiply
    648,524.40x = 971,231.40 × 524,108.40
  4. Step 4: Simplify right side
    648,524.40x = 509,030,535,083.76
  5. Step 5: Solve for x
    x = 509,030,535,083.76/648,524.40
  6. Step 6: Final answer
    x = 784,905.76

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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.