Home / 991,707.32-1,487,659.38-317,619.32

Finding the Fourth Proportional to 991,707.32, 1,487,659.38 and 317,619.32

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Solution

The fourth proportional to 991,707.32, 1,487,659.38 and 317,619.32 is: 476,460.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,707.32 : 1,487,659.38 = 317,619.32 : x
  2. Step 2: Convert to fraction form
    991,707.32/1,487,659.38 = 317,619.32/x
  3. Step 3: Cross multiply
    991,707.32x = 1,487,659.38 × 317,619.32
  4. Step 4: Simplify right side
    991,707.32x = 472,509,360,667.22
  5. Step 5: Solve for x
    x = 472,509,360,667.22/991,707.32
  6. Step 6: Final answer
    x = 476,460.50

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Double scale
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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.