Home / 761,043.20-1,050,181.81-421,504.16

Finding the Fourth Proportional to 761,043.20, 1,050,181.81 and 421,504.16

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Solution

The fourth proportional to 761,043.20, 1,050,181.81 and 421,504.16 is: 581,643.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,043.20 : 1,050,181.81 = 421,504.16 : x
  2. Step 2: Convert to fraction form
    761,043.20/1,050,181.81 = 421,504.16/x
  3. Step 3: Cross multiply
    761,043.20x = 1,050,181.81 × 421,504.16
  4. Step 4: Simplify right side
    761,043.20x = 442,655,995,366.66
  5. Step 5: Solve for x
    x = 442,655,995,366.66/761,043.20
  6. Step 6: Final answer
    x = 581,643.72

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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.