Home / 760,790.84-1,049,878.52-421,251.80

Finding the Fourth Proportional to 760,790.84, 1,049,878.52 and 421,251.80

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Solution

The fourth proportional to 760,790.84, 1,049,878.52 and 421,251.80 is: 581,320.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,790.84 : 1,049,878.52 = 421,251.80 : x
  2. Step 2: Convert to fraction form
    760,790.84/1,049,878.52 = 421,251.80/x
  3. Step 3: Cross multiply
    760,790.84x = 1,049,878.52 × 421,251.80
  4. Step 4: Simplify right side
    760,790.84x = 442,263,216,331.34
  5. Step 5: Solve for x
    x = 442,263,216,331.34/760,790.84
  6. Step 6: Final answer
    x = 581,320.37

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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.