Home / 651,073.20-975,054.60-399,130.80

Finding the Fourth Proportional to 651,073.20, 975,054.60 and 399,130.80

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Solution

The fourth proportional to 651,073.20, 975,054.60 and 399,130.80 is: 597,742.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,073.20 : 975,054.60 = 399,130.80 : x
  2. Step 2: Convert to fraction form
    651,073.20/975,054.60 = 399,130.80/x
  3. Step 3: Cross multiply
    651,073.20x = 975,054.60 × 399,130.80
  4. Step 4: Simplify right side
    651,073.20x = 389,174,322,541.68
  5. Step 5: Solve for x
    x = 389,174,322,541.68/651,073.20
  6. Step 6: Final answer
    x = 597,742.81

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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.