Home / 760,817.64-1,049,928.26-421,285.88

Finding the Fourth Proportional to 760,817.64, 1,049,928.26 and 421,285.88

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Solution

The fourth proportional to 760,817.64, 1,049,928.26 and 421,285.88 is: 581,374.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,817.64 : 1,049,928.26 = 421,285.88 : x
  2. Step 2: Convert to fraction form
    760,817.64/1,049,928.26 = 421,285.88/x
  3. Step 3: Cross multiply
    760,817.64x = 1,049,928.26 × 421,285.88
  4. Step 4: Simplify right side
    760,817.64x = 442,319,950,950.97
  5. Step 5: Solve for x
    x = 442,319,950,950.97/760,817.64
  6. Step 6: Final answer
    x = 581,374.47

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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.