Home / 354,022.40-531,033.60-319,030.40

Finding the Fourth Proportional to 354,022.40, 531,033.60 and 319,030.40

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Solution

The fourth proportional to 354,022.40, 531,033.60 and 319,030.40 is: 478,545.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,022.40 : 531,033.60 = 319,030.40 : x
  2. Step 2: Convert to fraction form
    354,022.40/531,033.60 = 319,030.40/x
  3. Step 3: Cross multiply
    354,022.40x = 531,033.60 × 319,030.40
  4. Step 4: Simplify right side
    354,022.40x = 169,415,861,821.44
  5. Step 5: Solve for x
    x = 169,415,861,821.44/354,022.40
  6. Step 6: Final answer
    x = 478,545.60

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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.