Home / 1,287,419.84-1,776,852-714,643.52

Finding the Fourth Proportional to 1,287,419.84, 1,776,852 and 714,643.52

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Solution

The fourth proportional to 1,287,419.84, 1,776,852 and 714,643.52 is: 986,326.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,419.84 : 1,776,852 = 714,643.52 : x
  2. Step 2: Convert to fraction form
    1,287,419.84/1,776,852 = 714,643.52/x
  3. Step 3: Cross multiply
    1,287,419.84x = 1,776,852 × 714,643.52
  4. Step 4: Simplify right side
    1,287,419.84x = 1,269,815,767,799.04
  5. Step 5: Solve for x
    x = 1,269,815,767,799.04/1,287,419.84
  6. Step 6: Final answer
    x = 986,326.08

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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.