Home / 454,051.60-684,477.80-423,604.24

Finding the Fourth Proportional to 454,051.60, 684,477.80 and 423,604.24

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Solution

The fourth proportional to 454,051.60, 684,477.80 and 423,604.24 is: 638,578.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,051.60 : 684,477.80 = 423,604.24 : x
  2. Step 2: Convert to fraction form
    454,051.60/684,477.80 = 423,604.24/x
  3. Step 3: Cross multiply
    454,051.60x = 684,477.80 × 423,604.24
  4. Step 4: Simplify right side
    454,051.60x = 289,947,698,265.87
  5. Step 5: Solve for x
    x = 289,947,698,265.87/454,051.60
  6. Step 6: Final answer
    x = 638,578.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.