Home / 870,412.80-1,305,619.20-496,473.60

Finding the Fourth Proportional to 870,412.80, 1,305,619.20 and 496,473.60

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Solution

The fourth proportional to 870,412.80, 1,305,619.20 and 496,473.60 is: 744,710.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,412.80 : 1,305,619.20 = 496,473.60 : x
  2. Step 2: Convert to fraction form
    870,412.80/1,305,619.20 = 496,473.60/x
  3. Step 3: Cross multiply
    870,412.80x = 1,305,619.20 × 496,473.60
  4. Step 4: Simplify right side
    870,412.80x = 648,205,464,453.12
  5. Step 5: Solve for x
    x = 648,205,464,453.12/870,412.80
  6. Step 6: Final answer
    x = 744,710.40

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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.