Home / 1,287,853.47-1,777,148.88-714,848.53

Finding the Fourth Proportional to 1,287,853.47, 1,777,148.88 and 714,848.53

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Solution

The fourth proportional to 1,287,853.47, 1,777,148.88 and 714,848.53 is: 986,441.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,853.47 : 1,777,148.88 = 714,848.53 : x
  2. Step 2: Convert to fraction form
    1,287,853.47/1,777,148.88 = 714,848.53/x
  3. Step 3: Cross multiply
    1,287,853.47x = 1,777,148.88 × 714,848.53
  4. Step 4: Simplify right side
    1,287,853.47x = 1,270,392,264,459.15
  5. Step 5: Solve for x
    x = 1,270,392,264,459.15/1,287,853.47
  6. Step 6: Final answer
    x = 986,441.62

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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.