Home / 1,980,248.72-2,971,012.77-915,988.91

Finding the Fourth Proportional to 1,980,248.72, 2,971,012.77 and 915,988.91

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Solution

The fourth proportional to 1,980,248.72, 2,971,012.77 and 915,988.91 is: 1,374,279.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,248.72 : 2,971,012.77 = 915,988.91 : x
  2. Step 2: Convert to fraction form
    1,980,248.72/2,971,012.77 = 915,988.91/x
  3. Step 3: Cross multiply
    1,980,248.72x = 2,971,012.77 × 915,988.91
  4. Step 4: Simplify right side
    1,980,248.72x = 2,721,414,733,933.32
  5. Step 5: Solve for x
    x = 2,721,414,733,933.32/1,980,248.72
  6. Step 6: Final answer
    x = 1,374,279.26

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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.