Home / 784,200.80-1,176,690.36-310,875.68

Finding the Fourth Proportional to 784,200.80, 1,176,690.36 and 310,875.68

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Solution

The fourth proportional to 784,200.80, 1,176,690.36 and 310,875.68 is: 466,467.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,200.80 : 1,176,690.36 = 310,875.68 : x
  2. Step 2: Convert to fraction form
    784,200.80/1,176,690.36 = 310,875.68/x
  3. Step 3: Cross multiply
    784,200.80x = 1,176,690.36 × 310,875.68
  4. Step 4: Simplify right side
    784,200.80x = 365,804,415,814.45
  5. Step 5: Solve for x
    x = 365,804,415,814.45/784,200.80
  6. Step 6: Final answer
    x = 466,467.79

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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.