Home / 760,392.01-1,049,374.11-420,860.17

Finding the Fourth Proportional to 760,392.01, 1,049,374.11 and 420,860.17

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Solution

The fourth proportional to 760,392.01, 1,049,374.11 and 420,860.17 is: 580,805.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,392.01 : 1,049,374.11 = 420,860.17 : x
  2. Step 2: Convert to fraction form
    760,392.01/1,049,374.11 = 420,860.17/x
  3. Step 3: Cross multiply
    760,392.01x = 1,049,374.11 × 420,860.17
  4. Step 4: Simplify right side
    760,392.01x = 441,639,766,328.20
  5. Step 5: Solve for x
    x = 441,639,766,328.20/760,392.01
  6. Step 6: Final answer
    x = 580,805.37

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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.