Home / 761,521.84-1,050,906.36-421,995.76

Finding the Fourth Proportional to 761,521.84, 1,050,906.36 and 421,995.76

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Solution

The fourth proportional to 761,521.84, 1,050,906.36 and 421,995.76 is: 582,357.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,521.84 : 1,050,906.36 = 421,995.76 : x
  2. Step 2: Convert to fraction form
    761,521.84/1,050,906.36 = 421,995.76/x
  3. Step 3: Cross multiply
    761,521.84x = 1,050,906.36 × 421,995.76
  4. Step 4: Simplify right side
    761,521.84x = 443,478,028,077.03
  5. Step 5: Solve for x
    x = 443,478,028,077.03/761,521.84
  6. Step 6: Final answer
    x = 582,357.60

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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.