Home / 760,808.34-1,049,947.16-421,276.59

Finding the Fourth Proportional to 760,808.34, 1,049,947.16 and 421,276.59

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Solution

The fourth proportional to 760,808.34, 1,049,947.16 and 421,276.59 is: 581,379.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,808.34 : 1,049,947.16 = 421,276.59 : x
  2. Step 2: Convert to fraction form
    760,808.34/1,049,947.16 = 421,276.59/x
  3. Step 3: Cross multiply
    760,808.34x = 1,049,947.16 × 421,276.59
  4. Step 4: Simplify right side
    760,808.34x = 442,318,157,138.60
  5. Step 5: Solve for x
    x = 442,318,157,138.60/760,808.34
  6. Step 6: Final answer
    x = 581,379.22

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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.