Home / 760,838.92-1,049,944.80-421,299.88

Finding the Fourth Proportional to 760,838.92, 1,049,944.80 and 421,299.88

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Solution

The fourth proportional to 760,838.92, 1,049,944.80 and 421,299.88 is: 581,386.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,838.92 : 1,049,944.80 = 421,299.88 : x
  2. Step 2: Convert to fraction form
    760,838.92/1,049,944.80 = 421,299.88/x
  3. Step 3: Cross multiply
    760,838.92x = 1,049,944.80 × 421,299.88
  4. Step 4: Simplify right side
    760,838.92x = 442,341,618,246.62
  5. Step 5: Solve for x
    x = 442,341,618,246.62/760,838.92
  6. Step 6: Final answer
    x = 581,386.69

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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.