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Finding the Fourth Proportional to 665,276.76, 918,084.78 and 363,477.24

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Solution

The fourth proportional to 665,276.76, 918,084.78 and 363,477.24 is: 501,600.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,276.76 : 918,084.78 = 363,477.24 : x
  2. Step 2: Convert to fraction form
    665,276.76/918,084.78 = 363,477.24/x
  3. Step 3: Cross multiply
    665,276.76x = 918,084.78 × 363,477.24
  4. Step 4: Simplify right side
    665,276.76x = 333,702,921,920.41
  5. Step 5: Solve for x
    x = 333,702,921,920.41/665,276.76
  6. Step 6: Final answer
    x = 501,600.15

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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.