Home / 1,287,805.58-1,777,158.51-714,831.02

Finding the Fourth Proportional to 1,287,805.58, 1,777,158.51 and 714,831.02

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Solution

The fourth proportional to 1,287,805.58, 1,777,158.51 and 714,831.02 is: 986,459.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,805.58 : 1,777,158.51 = 714,831.02 : x
  2. Step 2: Convert to fraction form
    1,287,805.58/1,777,158.51 = 714,831.02/x
  3. Step 3: Cross multiply
    1,287,805.58x = 1,777,158.51 × 714,831.02
  4. Step 4: Simplify right side
    1,287,805.58x = 1,270,368,030,404.98
  5. Step 5: Solve for x
    x = 1,270,368,030,404.98/1,287,805.58
  6. Step 6: Final answer
    x = 986,459.49

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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.