Home / 714,577.20-1,072,643.40-399,649.20

Finding the Fourth Proportional to 714,577.20, 1,072,643.40 and 399,649.20

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Solution

The fourth proportional to 714,577.20, 1,072,643.40 and 399,649.20 is: 599,908.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,577.20 : 1,072,643.40 = 399,649.20 : x
  2. Step 2: Convert to fraction form
    714,577.20/1,072,643.40 = 399,649.20/x
  3. Step 3: Cross multiply
    714,577.20x = 1,072,643.40 × 399,649.20
  4. Step 4: Simplify right side
    714,577.20x = 428,681,076,695.28
  5. Step 5: Solve for x
    x = 428,681,076,695.28/714,577.20
  6. Step 6: Final answer
    x = 599,908.70

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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.