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Finding the Fourth Proportional to 549,774.40, 824,661.60 and 425,358.40

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Solution

The fourth proportional to 549,774.40, 824,661.60 and 425,358.40 is: 638,037.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,774.40 : 824,661.60 = 425,358.40 : x
  2. Step 2: Convert to fraction form
    549,774.40/824,661.60 = 425,358.40/x
  3. Step 3: Cross multiply
    549,774.40x = 824,661.60 × 425,358.40
  4. Step 4: Simplify right side
    549,774.40x = 350,776,738,717.44
  5. Step 5: Solve for x
    x = 350,776,738,717.44/549,774.40
  6. Step 6: Final answer
    x = 638,037.60

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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.