Home / 1,287,639.08-1,776,929.08-714,664.52

Finding the Fourth Proportional to 1,287,639.08, 1,776,929.08 and 714,664.52

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Solution

The fourth proportional to 1,287,639.08, 1,776,929.08 and 714,664.52 is: 986,229.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,639.08 : 1,776,929.08 = 714,664.52 : x
  2. Step 2: Convert to fraction form
    1,287,639.08/1,776,929.08 = 714,664.52/x
  3. Step 3: Cross multiply
    1,287,639.08x = 1,776,929.08 × 714,664.52
  4. Step 4: Simplify right side
    1,287,639.08x = 1,269,908,168,032.24
  5. Step 5: Solve for x
    x = 1,269,908,168,032.24/1,287,639.08
  6. Step 6: Final answer
    x = 986,229.91

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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.