Home / 760,788.84-1,049,875.76-421,249.80

Finding the Fourth Proportional to 760,788.84, 1,049,875.76 and 421,249.80

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Solution

The fourth proportional to 760,788.84, 1,049,875.76 and 421,249.80 is: 581,317.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,788.84 : 1,049,875.76 = 421,249.80 : x
  2. Step 2: Convert to fraction form
    760,788.84/1,049,875.76 = 421,249.80/x
  3. Step 3: Cross multiply
    760,788.84x = 1,049,875.76 × 421,249.80
  4. Step 4: Simplify right side
    760,788.84x = 442,259,953,924.85
  5. Step 5: Solve for x
    x = 442,259,953,924.85/760,788.84
  6. Step 6: Final answer
    x = 581,317.61

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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.