Home / 1,308,688.48-1,963,031.76-422,224.48

Finding the Fourth Proportional to 1,308,688.48, 1,963,031.76 and 422,224.48

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Solution

The fourth proportional to 1,308,688.48, 1,963,031.76 and 422,224.48 is: 633,336.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,688.48 : 1,963,031.76 = 422,224.48 : x
  2. Step 2: Convert to fraction form
    1,308,688.48/1,963,031.76 = 422,224.48/x
  3. Step 3: Cross multiply
    1,308,688.48x = 1,963,031.76 × 422,224.48
  4. Step 4: Simplify right side
    1,308,688.48x = 828,840,064,089.49
  5. Step 5: Solve for x
    x = 828,840,064,089.49/1,308,688.48
  6. Step 6: Final answer
    x = 633,336.41

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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.