Home / 786,591.79-1,085,529.08-442,443.76

Finding the Fourth Proportional to 786,591.79, 1,085,529.08 and 442,443.76

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Solution

The fourth proportional to 786,591.79, 1,085,529.08 and 442,443.76 is: 610,590.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,591.79 : 1,085,529.08 = 442,443.76 : x
  2. Step 2: Convert to fraction form
    786,591.79/1,085,529.08 = 442,443.76/x
  3. Step 3: Cross multiply
    786,591.79x = 1,085,529.08 × 442,443.76
  4. Step 4: Simplify right side
    786,591.79x = 480,285,562,818.50
  5. Step 5: Solve for x
    x = 480,285,562,818.50/786,591.79
  6. Step 6: Final answer
    x = 610,590.61

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Double scale
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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.