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Finding the Fourth Proportional to 553,502.60, 830,010.90 and 253,883.60

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Solution

The fourth proportional to 553,502.60, 830,010.90 and 253,883.60 is: 380,713.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,502.60 : 830,010.90 = 253,883.60 : x
  2. Step 2: Convert to fraction form
    553,502.60/830,010.90 = 253,883.60/x
  3. Step 3: Cross multiply
    553,502.60x = 830,010.90 × 253,883.60
  4. Step 4: Simplify right side
    553,502.60x = 210,726,155,331.24
  5. Step 5: Solve for x
    x = 210,726,155,331.24/553,502.60
  6. Step 6: Final answer
    x = 380,713.94

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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.