Home / 784,320.38-1,083,348.70-646,996.95

Finding the Fourth Proportional to 784,320.38, 1,083,348.70 and 646,996.95

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Solution

The fourth proportional to 784,320.38, 1,083,348.70 and 646,996.95 is: 893,669.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,320.38 : 1,083,348.70 = 646,996.95 : x
  2. Step 2: Convert to fraction form
    784,320.38/1,083,348.70 = 646,996.95/x
  3. Step 3: Cross multiply
    784,320.38x = 1,083,348.70 × 646,996.95
  4. Step 4: Simplify right side
    784,320.38x = 700,923,300,318.27
  5. Step 5: Solve for x
    x = 700,923,300,318.27/784,320.38
  6. Step 6: Final answer
    x = 893,669.62

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1.5x scale

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.