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Finding the Fourth Proportional to 478,598.46, 660,470.31 and 263,746.23

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Solution

The fourth proportional to 478,598.46, 660,470.31 and 263,746.23 is: 363,972.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,598.46 : 660,470.31 = 263,746.23 : x
  2. Step 2: Convert to fraction form
    478,598.46/660,470.31 = 263,746.23/x
  3. Step 3: Cross multiply
    478,598.46x = 660,470.31 × 263,746.23
  4. Step 4: Simplify right side
    478,598.46x = 174,196,554,289.43
  5. Step 5: Solve for x
    x = 174,196,554,289.43/478,598.46
  6. Step 6: Final answer
    x = 363,972.24

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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.