Home / 1,287,030-1,776,101.64-714,068.80

Finding the Fourth Proportional to 1,287,030, 1,776,101.64 and 714,068.80

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Solution

The fourth proportional to 1,287,030, 1,776,101.64 and 714,068.80 is: 985,415.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,030 : 1,776,101.64 = 714,068.80 : x
  2. Step 2: Convert to fraction form
    1,287,030/1,776,101.64 = 714,068.80/x
  3. Step 3: Cross multiply
    1,287,030x = 1,776,101.64 × 714,068.80
  4. Step 4: Simplify right side
    1,287,030x = 1,268,258,766,752.83
  5. Step 5: Solve for x
    x = 1,268,258,766,752.83/1,287,030
  6. Step 6: Final answer
    x = 985,415.08

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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.