Home / 455,417.12-628,530.99-264,430.51

Finding the Fourth Proportional to 455,417.12, 628,530.99 and 264,430.51

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Solution

The fourth proportional to 455,417.12, 628,530.99 and 264,430.51 is: 364,946.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,417.12 : 628,530.99 = 264,430.51 : x
  2. Step 2: Convert to fraction form
    455,417.12/628,530.99 = 264,430.51/x
  3. Step 3: Cross multiply
    455,417.12x = 628,530.99 × 264,430.51
  4. Step 4: Simplify right side
    455,417.12x = 166,202,770,139.25
  5. Step 5: Solve for x
    x = 166,202,770,139.25/455,417.12
  6. Step 6: Final answer
    x = 364,946.25

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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.