Home / 759,870.20-1,139,805.07-286,444.85

Finding the Fourth Proportional to 759,870.20, 1,139,805.07 and 286,444.85

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Solution

The fourth proportional to 759,870.20, 1,139,805.07 and 286,444.85 is: 429,667.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,870.20 : 1,139,805.07 = 286,444.85 : x
  2. Step 2: Convert to fraction form
    759,870.20/1,139,805.07 = 286,444.85/x
  3. Step 3: Cross multiply
    759,870.20x = 1,139,805.07 × 286,444.85
  4. Step 4: Simplify right side
    759,870.20x = 326,491,286,964.42
  5. Step 5: Solve for x
    x = 326,491,286,964.42/759,870.20
  6. Step 6: Final answer
    x = 429,667.18

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Double scale
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Similar ratio
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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.