Home / 760,817.63-1,049,928.27-421,285.88

Finding the Fourth Proportional to 760,817.63, 1,049,928.27 and 421,285.88

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Solution

The fourth proportional to 760,817.63, 1,049,928.27 and 421,285.88 is: 581,374.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,817.63 : 1,049,928.27 = 421,285.88 : x
  2. Step 2: Convert to fraction form
    760,817.63/1,049,928.27 = 421,285.88/x
  3. Step 3: Cross multiply
    760,817.63x = 1,049,928.27 × 421,285.88
  4. Step 4: Simplify right side
    760,817.63x = 442,319,955,163.83
  5. Step 5: Solve for x
    x = 442,319,955,163.83/760,817.63
  6. Step 6: Final answer
    x = 581,374.48

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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.