Home / 760,182.51-1,049,061.20-420,682.35

Finding the Fourth Proportional to 760,182.51, 1,049,061.20 and 420,682.35

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Solution

The fourth proportional to 760,182.51, 1,049,061.20 and 420,682.35 is: 580,546.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,182.51 : 1,049,061.20 = 420,682.35 : x
  2. Step 2: Convert to fraction form
    760,182.51/1,049,061.20 = 420,682.35/x
  3. Step 3: Cross multiply
    760,182.51x = 1,049,061.20 × 420,682.35
  4. Step 4: Simplify right side
    760,182.51x = 441,321,528,806.41
  5. Step 5: Solve for x
    x = 441,321,528,806.41/760,182.51
  6. Step 6: Final answer
    x = 580,546.81

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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.