Home / 712,987.20-1,069,327.20-313,627.20

Finding the Fourth Proportional to 712,987.20, 1,069,327.20 and 313,627.20

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Solution

The fourth proportional to 712,987.20, 1,069,327.20 and 313,627.20 is: 470,373.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,987.20 : 1,069,327.20 = 313,627.20 : x
  2. Step 2: Convert to fraction form
    712,987.20/1,069,327.20 = 313,627.20/x
  3. Step 3: Cross multiply
    712,987.20x = 1,069,327.20 × 313,627.20
  4. Step 4: Simplify right side
    712,987.20x = 335,370,095,619.84
  5. Step 5: Solve for x
    x = 335,370,095,619.84/712,987.20
  6. Step 6: Final answer
    x = 470,373.23

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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.