Home / 760,371.48-1,049,365.80-420,861.60

Finding the Fourth Proportional to 760,371.48, 1,049,365.80 and 420,861.60

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Solution

The fourth proportional to 760,371.48, 1,049,365.80 and 420,861.60 is: 580,818.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,371.48 : 1,049,365.80 = 420,861.60 : x
  2. Step 2: Convert to fraction form
    760,371.48/1,049,365.80 = 420,861.60/x
  3. Step 3: Cross multiply
    760,371.48x = 1,049,365.80 × 420,861.60
  4. Step 4: Simplify right side
    760,371.48x = 441,637,769,573.28
  5. Step 5: Solve for x
    x = 441,637,769,573.28/760,371.48
  6. Step 6: Final answer
    x = 580,818.43

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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.