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Finding the Fourth Proportional to 625,348.80, 936,640.80 and 483,998.40

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Solution

The fourth proportional to 625,348.80, 936,640.80 and 483,998.40 is: 724,927.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,348.80 : 936,640.80 = 483,998.40 : x
  2. Step 2: Convert to fraction form
    625,348.80/936,640.80 = 483,998.40/x
  3. Step 3: Cross multiply
    625,348.80x = 936,640.80 × 483,998.40
  4. Step 4: Simplify right side
    625,348.80x = 453,332,648,574.72
  5. Step 5: Solve for x
    x = 453,332,648,574.72/625,348.80
  6. Step 6: Final answer
    x = 724,927.67

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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.