Home / 874,662.79-1,206,997.35-487,457.60

Finding the Fourth Proportional to 874,662.79, 1,206,997.35 and 487,457.60

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Solution

The fourth proportional to 874,662.79, 1,206,997.35 and 487,457.60 is: 672,670.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,662.79 : 1,206,997.35 = 487,457.60 : x
  2. Step 2: Convert to fraction form
    874,662.79/1,206,997.35 = 487,457.60/x
  3. Step 3: Cross multiply
    874,662.79x = 1,206,997.35 × 487,457.60
  4. Step 4: Simplify right side
    874,662.79x = 588,360,031,437.36
  5. Step 5: Solve for x
    x = 588,360,031,437.36/874,662.79
  6. Step 6: Final answer
    x = 672,670.70

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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.