Home / 629,657.30-868,947.36-357,720.24

Finding the Fourth Proportional to 629,657.30, 868,947.36 and 357,720.24

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Solution

The fourth proportional to 629,657.30, 868,947.36 and 357,720.24 is: 493,665.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,657.30 : 868,947.36 = 357,720.24 : x
  2. Step 2: Convert to fraction form
    629,657.30/868,947.36 = 357,720.24/x
  3. Step 3: Cross multiply
    629,657.30x = 868,947.36 × 357,720.24
  4. Step 4: Simplify right side
    629,657.30x = 310,840,058,166.57
  5. Step 5: Solve for x
    x = 310,840,058,166.57/629,657.30
  6. Step 6: Final answer
    x = 493,665.46

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1.5x scale

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.