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Finding the Fourth Proportional to 646,482.60, 892,263.60 and 374,724.36

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Solution

The fourth proportional to 646,482.60, 892,263.60 and 374,724.36 is: 517,187.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,482.60 : 892,263.60 = 374,724.36 : x
  2. Step 2: Convert to fraction form
    646,482.60/892,263.60 = 374,724.36/x
  3. Step 3: Cross multiply
    646,482.60x = 892,263.60 × 374,724.36
  4. Step 4: Simplify right side
    646,482.60x = 334,352,906,461.30
  5. Step 5: Solve for x
    x = 334,352,906,461.30/646,482.60
  6. Step 6: Final answer
    x = 517,187.79

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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.