Home / 646,727.80-970,091.70-609,986.20

Finding the Fourth Proportional to 646,727.80, 970,091.70 and 609,986.20

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Solution

The fourth proportional to 646,727.80, 970,091.70 and 609,986.20 is: 914,979.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,727.80 : 970,091.70 = 609,986.20 : x
  2. Step 2: Convert to fraction form
    646,727.80/970,091.70 = 609,986.20/x
  3. Step 3: Cross multiply
    646,727.80x = 970,091.70 × 609,986.20
  4. Step 4: Simplify right side
    646,727.80x = 591,742,549,734.54
  5. Step 5: Solve for x
    x = 591,742,549,734.54/646,727.80
  6. Step 6: Final answer
    x = 914,979.30

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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.