Home / 760,841.32-1,049,992.66-421,309.56

Finding the Fourth Proportional to 760,841.32, 1,049,992.66 and 421,309.56

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Solution

The fourth proportional to 760,841.32, 1,049,992.66 and 421,309.56 is: 581,424.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,841.32 : 1,049,992.66 = 421,309.56 : x
  2. Step 2: Convert to fraction form
    760,841.32/1,049,992.66 = 421,309.56/x
  3. Step 3: Cross multiply
    760,841.32x = 1,049,992.66 × 421,309.56
  4. Step 4: Simplify right side
    760,841.32x = 442,371,945,587.83
  5. Step 5: Solve for x
    x = 442,371,945,587.83/760,841.32
  6. Step 6: Final answer
    x = 581,424.71

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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.