Home / 852,426.40-1,278,178.80-353,840.80

Finding the Fourth Proportional to 852,426.40, 1,278,178.80 and 353,840.80

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Solution

The fourth proportional to 852,426.40, 1,278,178.80 and 353,840.80 is: 530,569.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,426.40 : 1,278,178.80 = 353,840.80 : x
  2. Step 2: Convert to fraction form
    852,426.40/1,278,178.80 = 353,840.80/x
  3. Step 3: Cross multiply
    852,426.40x = 1,278,178.80 × 353,840.80
  4. Step 4: Simplify right side
    852,426.40x = 452,271,809,135.04
  5. Step 5: Solve for x
    x = 452,271,809,135.04/852,426.40
  6. Step 6: Final answer
    x = 530,569.92

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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.