Home / 762,009.60-1,051,603.20-422,515.20

Finding the Fourth Proportional to 762,009.60, 1,051,603.20 and 422,515.20

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Solution

The fourth proportional to 762,009.60, 1,051,603.20 and 422,515.20 is: 583,087.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,009.60 : 1,051,603.20 = 422,515.20 : x
  2. Step 2: Convert to fraction form
    762,009.60/1,051,603.20 = 422,515.20/x
  3. Step 3: Cross multiply
    762,009.60x = 1,051,603.20 × 422,515.20
  4. Step 4: Simplify right side
    762,009.60x = 444,318,336,368.64
  5. Step 5: Solve for x
    x = 444,318,336,368.64/762,009.60
  6. Step 6: Final answer
    x = 583,087.58

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Double scale
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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.