Home / 694,239.02-958,138.60-388,332.40

Finding the Fourth Proportional to 694,239.02, 958,138.60 and 388,332.40

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Solution

The fourth proportional to 694,239.02, 958,138.60 and 388,332.40 is: 535,948.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,239.02 : 958,138.60 = 388,332.40 : x
  2. Step 2: Convert to fraction form
    694,239.02/958,138.60 = 388,332.40/x
  3. Step 3: Cross multiply
    694,239.02x = 958,138.60 × 388,332.40
  4. Step 4: Simplify right side
    694,239.02x = 372,076,262,070.64
  5. Step 5: Solve for x
    x = 372,076,262,070.64/694,239.02
  6. Step 6: Final answer
    x = 535,948.36

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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.