Home / 761,376.51-1,050,699.57-421,844.76

Finding the Fourth Proportional to 761,376.51, 1,050,699.57 and 421,844.76

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Solution

The fourth proportional to 761,376.51, 1,050,699.57 and 421,844.76 is: 582,145.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,376.51 : 1,050,699.57 = 421,844.76 : x
  2. Step 2: Convert to fraction form
    761,376.51/1,050,699.57 = 421,844.76/x
  3. Step 3: Cross multiply
    761,376.51x = 1,050,699.57 × 421,844.76
  4. Step 4: Simplify right side
    761,376.51x = 443,232,107,938.75
  5. Step 5: Solve for x
    x = 443,232,107,938.75/761,376.51
  6. Step 6: Final answer
    x = 582,145.76

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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.