Home / 1,178,121.52-1,625,814.22-661,897.18

Finding the Fourth Proportional to 1,178,121.52, 1,625,814.22 and 661,897.18

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Solution

The fourth proportional to 1,178,121.52, 1,625,814.22 and 661,897.18 is: 913,421.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,121.52 : 1,625,814.22 = 661,897.18 : x
  2. Step 2: Convert to fraction form
    1,178,121.52/1,625,814.22 = 661,897.18/x
  3. Step 3: Cross multiply
    1,178,121.52x = 1,625,814.22 × 661,897.18
  4. Step 4: Simplify right side
    1,178,121.52x = 1,076,121,849,040.48
  5. Step 5: Solve for x
    x = 1,076,121,849,040.48/1,178,121.52
  6. Step 6: Final answer
    x = 913,421.77

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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.