Home / 1,207,985.74-1,667,031.53-664,125.35

Finding the Fourth Proportional to 1,207,985.74, 1,667,031.53 and 664,125.35

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Solution

The fourth proportional to 1,207,985.74, 1,667,031.53 and 664,125.35 is: 916,499.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,985.74 : 1,667,031.53 = 664,125.35 : x
  2. Step 2: Convert to fraction form
    1,207,985.74/1,667,031.53 = 664,125.35/x
  3. Step 3: Cross multiply
    1,207,985.74x = 1,667,031.53 × 664,125.35
  4. Step 4: Simplify right side
    1,207,985.74x = 1,107,117,898,322.29
  5. Step 5: Solve for x
    x = 1,107,117,898,322.29/1,207,985.74
  6. Step 6: Final answer
    x = 916,499.15

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.