Home / 759,865.19-1,139,797.54-286,439.83

Finding the Fourth Proportional to 759,865.19, 1,139,797.54 and 286,439.83

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Solution

The fourth proportional to 759,865.19, 1,139,797.54 and 286,439.83 is: 429,659.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,865.19 : 1,139,797.54 = 286,439.83 : x
  2. Step 2: Convert to fraction form
    759,865.19/1,139,797.54 = 286,439.83/x
  3. Step 3: Cross multiply
    759,865.19x = 1,139,797.54 × 286,439.83
  4. Step 4: Simplify right side
    759,865.19x = 326,483,411,100.57
  5. Step 5: Solve for x
    x = 326,483,411,100.57/759,865.19
  6. Step 6: Final answer
    x = 429,659.65

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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.