Home / 760,805.12-1,049,910.88-421,273.28

Finding the Fourth Proportional to 760,805.12, 1,049,910.88 and 421,273.28

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Solution

The fourth proportional to 760,805.12, 1,049,910.88 and 421,273.28 is: 581,357.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,805.12 : 1,049,910.88 = 421,273.28 : x
  2. Step 2: Convert to fraction form
    760,805.12/1,049,910.88 = 421,273.28/x
  3. Step 3: Cross multiply
    760,805.12x = 1,049,910.88 × 421,273.28
  4. Step 4: Simplify right side
    760,805.12x = 442,299,400,125.29
  5. Step 5: Solve for x
    x = 442,299,400,125.29/760,805.12
  6. Step 6: Final answer
    x = 581,357.02

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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.