Home / 286,530.04-429,646.74-128,622.52

Finding the Fourth Proportional to 286,530.04, 429,646.74 and 128,622.52

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Solution

The fourth proportional to 286,530.04, 429,646.74 and 128,622.52 is: 192,867.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,530.04 : 429,646.74 = 128,622.52 : x
  2. Step 2: Convert to fraction form
    286,530.04/429,646.74 = 128,622.52/x
  3. Step 3: Cross multiply
    286,530.04x = 429,646.74 × 128,622.52
  4. Step 4: Simplify right side
    286,530.04x = 55,262,246,408.58
  5. Step 5: Solve for x
    x = 55,262,246,408.58/286,530.04
  6. Step 6: Final answer
    x = 192,867.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.