Home / 478,743.60-718,248.24-208,895.34

Finding the Fourth Proportional to 478,743.60, 718,248.24 and 208,895.34

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Solution

The fourth proportional to 478,743.60, 718,248.24 and 208,895.34 is: 313,400.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,743.60 : 718,248.24 = 208,895.34 : x
  2. Step 2: Convert to fraction form
    478,743.60/718,248.24 = 208,895.34/x
  3. Step 3: Cross multiply
    478,743.60x = 718,248.24 × 208,895.34
  4. Step 4: Simplify right side
    478,743.60x = 150,038,710,299.20
  5. Step 5: Solve for x
    x = 150,038,710,299.20/478,743.60
  6. Step 6: Final answer
    x = 313,400.97

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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.