Home / 648,049.05-972,073.58-410,686.65

Finding the Fourth Proportional to 648,049.05, 972,073.58 and 410,686.65

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Solution

The fourth proportional to 648,049.05, 972,073.58 and 410,686.65 is: 616,029.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,049.05 : 972,073.58 = 410,686.65 : x
  2. Step 2: Convert to fraction form
    648,049.05/972,073.58 = 410,686.65/x
  3. Step 3: Cross multiply
    648,049.05x = 972,073.58 × 410,686.65
  4. Step 4: Simplify right side
    648,049.05x = 399,217,640,070.27
  5. Step 5: Solve for x
    x = 399,217,640,070.27/648,049.05
  6. Step 6: Final answer
    x = 616,029.98

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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.