Home / 1,287,741.40-1,931,612.10-341,207.80

Finding the Fourth Proportional to 1,287,741.40, 1,931,612.10 and 341,207.80

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Solution

The fourth proportional to 1,287,741.40, 1,931,612.10 and 341,207.80 is: 511,811.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,741.40 : 1,931,612.10 = 341,207.80 : x
  2. Step 2: Convert to fraction form
    1,287,741.40/1,931,612.10 = 341,207.80/x
  3. Step 3: Cross multiply
    1,287,741.40x = 1,931,612.10 × 341,207.80
  4. Step 4: Simplify right side
    1,287,741.40x = 659,081,115,094.38
  5. Step 5: Solve for x
    x = 659,081,115,094.38/1,287,741.40
  6. Step 6: Final answer
    x = 511,811.70

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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.