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Finding the Fourth Proportional to 648,142.64, 894,303.31 and 372,447.24

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Solution

The fourth proportional to 648,142.64, 894,303.31 and 372,447.24 is: 513,900.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,142.64 : 894,303.31 = 372,447.24 : x
  2. Step 2: Convert to fraction form
    648,142.64/894,303.31 = 372,447.24/x
  3. Step 3: Cross multiply
    648,142.64x = 894,303.31 × 372,447.24
  4. Step 4: Simplify right side
    648,142.64x = 333,080,799,532.36
  5. Step 5: Solve for x
    x = 333,080,799,532.36/648,142.64
  6. Step 6: Final answer
    x = 513,900.46

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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.