Home / 902,500.14-1,245,484.72-515,378.74

Finding the Fourth Proportional to 902,500.14, 1,245,484.72 and 515,378.74

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Solution

The fourth proportional to 902,500.14, 1,245,484.72 and 515,378.74 is: 711,242.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,500.14 : 1,245,484.72 = 515,378.74 : x
  2. Step 2: Convert to fraction form
    902,500.14/1,245,484.72 = 515,378.74/x
  3. Step 3: Cross multiply
    902,500.14x = 1,245,484.72 × 515,378.74
  4. Step 4: Simplify right side
    902,500.14x = 641,896,345,682.85
  5. Step 5: Solve for x
    x = 641,896,345,682.85/902,500.14
  6. Step 6: Final answer
    x = 711,242.38

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Double scale
Find fourth proportional to 902,501.14, 1,245,486.10 and 515,379.74
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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.