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Finding the Fourth Proportional to 478,473.16, 717,496.46 and 253,782.45

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Solution

The fourth proportional to 478,473.16, 717,496.46 and 253,782.45 is: 380,560.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,473.16 : 717,496.46 = 253,782.45 : x
  2. Step 2: Convert to fraction form
    478,473.16/717,496.46 = 253,782.45/x
  3. Step 3: Cross multiply
    478,473.16x = 717,496.46 × 253,782.45
  4. Step 4: Simplify right side
    478,473.16x = 182,088,009,485.13
  5. Step 5: Solve for x
    x = 182,088,009,485.13/478,473.16
  6. Step 6: Final answer
    x = 380,560.55

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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.