Home / 760,692.49-1,049,826.05-421,160.74

Finding the Fourth Proportional to 760,692.49, 1,049,826.05 and 421,160.74

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Solution

The fourth proportional to 760,692.49, 1,049,826.05 and 421,160.74 is: 581,240.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,692.49 : 1,049,826.05 = 421,160.74 : x
  2. Step 2: Convert to fraction form
    760,692.49/1,049,826.05 = 421,160.74/x
  3. Step 3: Cross multiply
    760,692.49x = 1,049,826.05 × 421,160.74
  4. Step 4: Simplify right side
    760,692.49x = 442,145,514,517.61
  5. Step 5: Solve for x
    x = 442,145,514,517.61/760,692.49
  6. Step 6: Final answer
    x = 581,240.81

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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.