Home / 760,765.08-1,049,855.78-421,233.32

Finding the Fourth Proportional to 760,765.08, 1,049,855.78 and 421,233.32

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Solution

The fourth proportional to 760,765.08, 1,049,855.78 and 421,233.32 is: 581,301.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,765.08 : 1,049,855.78 = 421,233.32 : x
  2. Step 2: Convert to fraction form
    760,765.08/1,049,855.78 = 421,233.32/x
  3. Step 3: Cross multiply
    760,765.08x = 1,049,855.78 × 421,233.32
  4. Step 4: Simplify right side
    760,765.08x = 442,234,235,730.59
  5. Step 5: Solve for x
    x = 442,234,235,730.59/760,765.08
  6. Step 6: Final answer
    x = 581,301.96

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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.