Home / 1,178,126.02-1,625,820.43-661,901.68

Finding the Fourth Proportional to 1,178,126.02, 1,625,820.43 and 661,901.68

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Solution

The fourth proportional to 1,178,126.02, 1,625,820.43 and 661,901.68 is: 913,427.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,126.02 : 1,625,820.43 = 661,901.68 : x
  2. Step 2: Convert to fraction form
    1,178,126.02/1,625,820.43 = 661,901.68/x
  3. Step 3: Cross multiply
    1,178,126.02x = 1,625,820.43 × 661,901.68
  4. Step 4: Simplify right side
    1,178,126.02x = 1,076,133,273,995.32
  5. Step 5: Solve for x
    x = 1,076,133,273,995.32/1,178,126.02
  6. Step 6: Final answer
    x = 913,427.98

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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.