Home / 1,207,206-1,665,943.80-663,376.86

Finding the Fourth Proportional to 1,207,206, 1,665,943.80 and 663,376.86

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Solution

The fourth proportional to 1,207,206, 1,665,943.80 and 663,376.86 is: 915,459.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,206 : 1,665,943.80 = 663,376.86 : x
  2. Step 2: Convert to fraction form
    1,207,206/1,665,943.80 = 663,376.86/x
  3. Step 3: Cross multiply
    1,207,206x = 1,665,943.80 × 663,376.86
  4. Step 4: Simplify right side
    1,207,206x = 1,105,148,566,980.47
  5. Step 5: Solve for x
    x = 1,105,148,566,980.47/1,207,206
  6. Step 6: Final answer
    x = 915,459.80

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Why These Related Problems?

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