Home / 1,383,574.47-1,909,327.86-771,726.75

Finding the Fourth Proportional to 1,383,574.47, 1,909,327.86 and 771,726.75

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Solution

The fourth proportional to 1,383,574.47, 1,909,327.86 and 771,726.75 is: 1,064,980.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,574.47 : 1,909,327.86 = 771,726.75 : x
  2. Step 2: Convert to fraction form
    1,383,574.47/1,909,327.86 = 771,726.75/x
  3. Step 3: Cross multiply
    1,383,574.47x = 1,909,327.86 × 771,726.75
  4. Step 4: Simplify right side
    1,383,574.47x = 1,473,479,384,082.26
  5. Step 5: Solve for x
    x = 1,473,479,384,082.26/1,383,574.47
  6. Step 6: Final answer
    x = 1,064,980.18

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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.