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Finding the Fourth Proportional to 648,430.63, 894,830.83 and 376,565.37

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Solution

The fourth proportional to 648,430.63, 894,830.83 and 376,565.37 is: 519,658.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,430.63 : 894,830.83 = 376,565.37 : x
  2. Step 2: Convert to fraction form
    648,430.63/894,830.83 = 376,565.37/x
  3. Step 3: Cross multiply
    648,430.63x = 894,830.83 × 376,565.37
  4. Step 4: Simplify right side
    648,430.63x = 336,962,302,586.36
  5. Step 5: Solve for x
    x = 336,962,302,586.36/648,430.63
  6. Step 6: Final answer
    x = 519,658.21

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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.