Home / 1,386,444.94-1,912,966.07-805,322.77

Finding the Fourth Proportional to 1,386,444.94, 1,912,966.07 and 805,322.77

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Solution

The fourth proportional to 1,386,444.94, 1,912,966.07 and 805,322.77 is: 1,111,154.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,444.94 : 1,912,966.07 = 805,322.77 : x
  2. Step 2: Convert to fraction form
    1,386,444.94/1,912,966.07 = 805,322.77/x
  3. Step 3: Cross multiply
    1,386,444.94x = 1,912,966.07 × 805,322.77
  4. Step 4: Simplify right side
    1,386,444.94x = 1,540,555,136,421.72
  5. Step 5: Solve for x
    x = 1,540,555,136,421.72/1,386,444.94
  6. Step 6: Final answer
    x = 1,111,154.93

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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.