Home / 520,943.04-718,905.68-282,479.04

Finding the Fourth Proportional to 520,943.04, 718,905.68 and 282,479.04

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Solution

The fourth proportional to 520,943.04, 718,905.68 and 282,479.04 is: 389,823.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,943.04 : 718,905.68 = 282,479.04 : x
  2. Step 2: Convert to fraction form
    520,943.04/718,905.68 = 282,479.04/x
  3. Step 3: Cross multiply
    520,943.04x = 718,905.68 × 282,479.04
  4. Step 4: Simplify right side
    520,943.04x = 203,075,786,336.95
  5. Step 5: Solve for x
    x = 203,075,786,336.95/520,943.04
  6. Step 6: Final answer
    x = 389,823.40

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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.