Home / 931,711.70-1,285,732.36-523,830.80

Finding the Fourth Proportional to 931,711.70, 1,285,732.36 and 523,830.80

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Solution

The fourth proportional to 931,711.70, 1,285,732.36 and 523,830.80 is: 722,869.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,711.70 : 1,285,732.36 = 523,830.80 : x
  2. Step 2: Convert to fraction form
    931,711.70/1,285,732.36 = 523,830.80/x
  3. Step 3: Cross multiply
    931,711.70x = 1,285,732.36 × 523,830.80
  4. Step 4: Simplify right side
    931,711.70x = 673,506,210,724.69
  5. Step 5: Solve for x
    x = 673,506,210,724.69/931,711.70
  6. Step 6: Final answer
    x = 722,869.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.