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Finding the Fourth Proportional to 525,471.40, 788,317.80 and 170,457.70

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Solution

The fourth proportional to 525,471.40, 788,317.80 and 170,457.70 is: 255,722.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,471.40 : 788,317.80 = 170,457.70 : x
  2. Step 2: Convert to fraction form
    525,471.40/788,317.80 = 170,457.70/x
  3. Step 3: Cross multiply
    525,471.40x = 788,317.80 × 170,457.70
  4. Step 4: Simplify right side
    525,471.40x = 134,374,836,447.05
  5. Step 5: Solve for x
    x = 134,374,836,447.05/525,471.40
  6. Step 6: Final answer
    x = 255,722.46

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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.