Home / 688,728.30-950,117.07-459,391.50

Finding the Fourth Proportional to 688,728.30, 950,117.07 and 459,391.50

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Solution

The fourth proportional to 688,728.30, 950,117.07 and 459,391.50 is: 633,741.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,728.30 : 950,117.07 = 459,391.50 : x
  2. Step 2: Convert to fraction form
    688,728.30/950,117.07 = 459,391.50/x
  3. Step 3: Cross multiply
    688,728.30x = 950,117.07 × 459,391.50
  4. Step 4: Simplify right side
    688,728.30x = 436,475,705,962.91
  5. Step 5: Solve for x
    x = 436,475,705,962.91/688,728.30
  6. Step 6: Final answer
    x = 633,741.50

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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.