Home / 1,137,639.51-1,569,950.67-628,341.90

Finding the Fourth Proportional to 1,137,639.51, 1,569,950.67 and 628,341.90

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Solution

The fourth proportional to 1,137,639.51, 1,569,950.67 and 628,341.90 is: 867,116.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,639.51 : 1,569,950.67 = 628,341.90 : x
  2. Step 2: Convert to fraction form
    1,137,639.51/1,569,950.67 = 628,341.90/x
  3. Step 3: Cross multiply
    1,137,639.51x = 1,569,950.67 × 628,341.90
  4. Step 4: Simplify right side
    1,137,639.51x = 986,465,786,894.07
  5. Step 5: Solve for x
    x = 986,465,786,894.07/1,137,639.51
  6. Step 6: Final answer
    x = 867,116.32

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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.