Home / 761,525.84-1,050,911.88-421,999.76

Finding the Fourth Proportional to 761,525.84, 1,050,911.88 and 421,999.76

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Solution

The fourth proportional to 761,525.84, 1,050,911.88 and 421,999.76 is: 582,363.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,525.84 : 1,050,911.88 = 421,999.76 : x
  2. Step 2: Convert to fraction form
    761,525.84/1,050,911.88 = 421,999.76/x
  3. Step 3: Cross multiply
    761,525.84x = 1,050,911.88 × 421,999.76
  4. Step 4: Simplify right side
    761,525.84x = 443,484,561,141.15
  5. Step 5: Solve for x
    x = 443,484,561,141.15/761,525.84
  6. Step 6: Final answer
    x = 582,363.12

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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.