Home / 760,828.92-1,049,943.16-421,297.16

Finding the Fourth Proportional to 760,828.92, 1,049,943.16 and 421,297.16

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Solution

The fourth proportional to 760,828.92, 1,049,943.16 and 421,297.16 is: 581,389.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,828.92 : 1,049,943.16 = 421,297.16 : x
  2. Step 2: Convert to fraction form
    760,828.92/1,049,943.16 = 421,297.16/x
  3. Step 3: Cross multiply
    760,828.92x = 1,049,943.16 × 421,297.16
  4. Step 4: Simplify right side
    760,828.92x = 442,338,071,469.43
  5. Step 5: Solve for x
    x = 442,338,071,469.43/760,828.92
  6. Step 6: Final answer
    x = 581,389.67

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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.