Home / 740,568.60-1,021,987.80-401,037.12

Finding the Fourth Proportional to 740,568.60, 1,021,987.80 and 401,037.12

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Solution

The fourth proportional to 740,568.60, 1,021,987.80 and 401,037.12 is: 553,432.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,568.60 : 1,021,987.80 = 401,037.12 : x
  2. Step 2: Convert to fraction form
    740,568.60/1,021,987.80 = 401,037.12/x
  3. Step 3: Cross multiply
    740,568.60x = 1,021,987.80 × 401,037.12
  4. Step 4: Simplify right side
    740,568.60x = 409,855,043,987.14
  5. Step 5: Solve for x
    x = 409,855,043,987.14/740,568.60
  6. Step 6: Final answer
    x = 553,432.92

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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.