Home / 671,207.40-1,006,811.10-272,039.40

Finding the Fourth Proportional to 671,207.40, 1,006,811.10 and 272,039.40

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Solution

The fourth proportional to 671,207.40, 1,006,811.10 and 272,039.40 is: 408,059.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,207.40 : 1,006,811.10 = 272,039.40 : x
  2. Step 2: Convert to fraction form
    671,207.40/1,006,811.10 = 272,039.40/x
  3. Step 3: Cross multiply
    671,207.40x = 1,006,811.10 × 272,039.40
  4. Step 4: Simplify right side
    671,207.40x = 273,892,287,557.34
  5. Step 5: Solve for x
    x = 273,892,287,557.34/671,207.40
  6. Step 6: Final answer
    x = 408,059.10

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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.