Home / 723,870.94-1,085,806.39-392,094.94

Finding the Fourth Proportional to 723,870.94, 1,085,806.39 and 392,094.94

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Solution

The fourth proportional to 723,870.94, 1,085,806.39 and 392,094.94 is: 588,142.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,870.94 : 1,085,806.39 = 392,094.94 : x
  2. Step 2: Convert to fraction form
    723,870.94/1,085,806.39 = 392,094.94/x
  3. Step 3: Cross multiply
    723,870.94x = 1,085,806.39 × 392,094.94
  4. Step 4: Simplify right side
    723,870.94x = 425,739,191,338.67
  5. Step 5: Solve for x
    x = 425,739,191,338.67/723,870.94
  6. Step 6: Final answer
    x = 588,142.40

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