Home / 671,636.80-1,007,455.20-545,665.60

Finding the Fourth Proportional to 671,636.80, 1,007,455.20 and 545,665.60

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Solution

The fourth proportional to 671,636.80, 1,007,455.20 and 545,665.60 is: 818,498.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,636.80 : 1,007,455.20 = 545,665.60 : x
  2. Step 2: Convert to fraction form
    671,636.80/1,007,455.20 = 545,665.60/x
  3. Step 3: Cross multiply
    671,636.80x = 1,007,455.20 × 545,665.60
  4. Step 4: Simplify right side
    671,636.80x = 549,733,646,181.12
  5. Step 5: Solve for x
    x = 549,733,646,181.12/671,636.80
  6. Step 6: Final answer
    x = 818,498.40

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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.