Home / 761,520.84-1,050,904.98-421,994.76

Finding the Fourth Proportional to 761,520.84, 1,050,904.98 and 421,994.76

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Solution

The fourth proportional to 761,520.84, 1,050,904.98 and 421,994.76 is: 582,356.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,520.84 : 1,050,904.98 = 421,994.76 : x
  2. Step 2: Convert to fraction form
    761,520.84/1,050,904.98 = 421,994.76/x
  3. Step 3: Cross multiply
    761,520.84x = 1,050,904.98 × 421,994.76
  4. Step 4: Simplify right side
    761,520.84x = 443,476,394,817.91
  5. Step 5: Solve for x
    x = 443,476,394,817.91/761,520.84
  6. Step 6: Final answer
    x = 582,356.22

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Double scale
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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.