Home / 646,430.09-892,064.97-356,036.04

Finding the Fourth Proportional to 646,430.09, 892,064.97 and 356,036.04

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Solution

The fourth proportional to 646,430.09, 892,064.97 and 356,036.04 is: 491,325.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,430.09 : 892,064.97 = 356,036.04 : x
  2. Step 2: Convert to fraction form
    646,430.09/892,064.97 = 356,036.04/x
  3. Step 3: Cross multiply
    646,430.09x = 892,064.97 × 356,036.04
  4. Step 4: Simplify right side
    646,430.09x = 317,607,279,341.52
  5. Step 5: Solve for x
    x = 317,607,279,341.52/646,430.09
  6. Step 6: Final answer
    x = 491,325.03

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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.