Home / 808,428.80-1,212,643.20-275,967.20

Finding the Fourth Proportional to 808,428.80, 1,212,643.20 and 275,967.20

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Solution

The fourth proportional to 808,428.80, 1,212,643.20 and 275,967.20 is: 413,950.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,428.80 : 1,212,643.20 = 275,967.20 : x
  2. Step 2: Convert to fraction form
    808,428.80/1,212,643.20 = 275,967.20/x
  3. Step 3: Cross multiply
    808,428.80x = 1,212,643.20 × 275,967.20
  4. Step 4: Simplify right side
    808,428.80x = 334,649,748,503.04
  5. Step 5: Solve for x
    x = 334,649,748,503.04/808,428.80
  6. Step 6: Final answer
    x = 413,950.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.