Home / 646,700.19-892,473.80-360,220.20

Finding the Fourth Proportional to 646,700.19, 892,473.80 and 360,220.20

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Solution

The fourth proportional to 646,700.19, 892,473.80 and 360,220.20 is: 497,119.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,700.19 : 892,473.80 = 360,220.20 : x
  2. Step 2: Convert to fraction form
    646,700.19/892,473.80 = 360,220.20/x
  3. Step 3: Cross multiply
    646,700.19x = 892,473.80 × 360,220.20
  4. Step 4: Simplify right side
    646,700.19x = 321,487,085,582.88
  5. Step 5: Solve for x
    x = 321,487,085,582.88/646,700.19
  6. Step 6: Final answer
    x = 497,119.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.