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Finding the Fourth Proportional to 637,969.68, 880,764.70 and 423,400.68

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Solution

The fourth proportional to 637,969.68, 880,764.70 and 423,400.68 is: 584,536.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,969.68 : 880,764.70 = 423,400.68 : x
  2. Step 2: Convert to fraction form
    637,969.68/880,764.70 = 423,400.68/x
  3. Step 3: Cross multiply
    637,969.68x = 880,764.70 × 423,400.68
  4. Step 4: Simplify right side
    637,969.68x = 372,916,372,900.00
  5. Step 5: Solve for x
    x = 372,916,372,900.00/637,969.68
  6. Step 6: Final answer
    x = 584,536.20

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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.