Home / 623,468.07-860,434.64-347,912.55

Finding the Fourth Proportional to 623,468.07, 860,434.64 and 347,912.55

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Solution

The fourth proportional to 623,468.07, 860,434.64 and 347,912.55 is: 480,146.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,468.07 : 860,434.64 = 347,912.55 : x
  2. Step 2: Convert to fraction form
    623,468.07/860,434.64 = 347,912.55/x
  3. Step 3: Cross multiply
    623,468.07x = 860,434.64 × 347,912.55
  4. Step 4: Simplify right side
    623,468.07x = 299,356,007,971.17
  5. Step 5: Solve for x
    x = 299,356,007,971.17/623,468.07
  6. Step 6: Final answer
    x = 480,146.49

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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.