Home / 760,849.08-1,049,972.40-421,310.04

Finding the Fourth Proportional to 760,849.08, 1,049,972.40 and 421,310.04

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Solution

The fourth proportional to 760,849.08, 1,049,972.40 and 421,310.04 is: 581,408.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,849.08 : 1,049,972.40 = 421,310.04 : x
  2. Step 2: Convert to fraction form
    760,849.08/1,049,972.40 = 421,310.04/x
  3. Step 3: Cross multiply
    760,849.08x = 1,049,972.40 × 421,310.04
  4. Step 4: Simplify right side
    760,849.08x = 442,363,913,842.90
  5. Step 5: Solve for x
    x = 442,363,913,842.90/760,849.08
  6. Step 6: Final answer
    x = 581,408.23

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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.