Home / 760,829.96-1,049,932.50-421,290.92

Finding the Fourth Proportional to 760,829.96, 1,049,932.50 and 421,290.92

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Solution

The fourth proportional to 760,829.96, 1,049,932.50 and 421,290.92 is: 581,374.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,829.96 : 1,049,932.50 = 421,290.92 : x
  2. Step 2: Convert to fraction form
    760,829.96/1,049,932.50 = 421,290.92/x
  3. Step 3: Cross multiply
    760,829.96x = 1,049,932.50 × 421,290.92
  4. Step 4: Simplify right side
    760,829.96x = 442,327,028,862.90
  5. Step 5: Solve for x
    x = 442,327,028,862.90/760,829.96
  6. Step 6: Final answer
    x = 581,374.36

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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.