Home / 671,638.80-1,007,458.20-545,667.60

Finding the Fourth Proportional to 671,638.80, 1,007,458.20 and 545,667.60

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Solution

The fourth proportional to 671,638.80, 1,007,458.20 and 545,667.60 is: 818,501.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,638.80 : 1,007,458.20 = 545,667.60 : x
  2. Step 2: Convert to fraction form
    671,638.80/1,007,458.20 = 545,667.60/x
  3. Step 3: Cross multiply
    671,638.80x = 1,007,458.20 × 545,667.60
  4. Step 4: Simplify right side
    671,638.80x = 549,737,298,094.32
  5. Step 5: Solve for x
    x = 549,737,298,094.32/671,638.80
  6. Step 6: Final answer
    x = 818,501.40

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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.