Home / 1,386,428.15-1,913,235.59-774,585.50

Finding the Fourth Proportional to 1,386,428.15, 1,913,235.59 and 774,585.50

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Solution

The fourth proportional to 1,386,428.15, 1,913,235.59 and 774,585.50 is: 1,068,908.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,428.15 : 1,913,235.59 = 774,585.50 : x
  2. Step 2: Convert to fraction form
    1,386,428.15/1,913,235.59 = 774,585.50/x
  3. Step 3: Cross multiply
    1,386,428.15x = 1,913,235.59 × 774,585.50
  4. Step 4: Simplify right side
    1,386,428.15x = 1,481,964,542,225.02
  5. Step 5: Solve for x
    x = 1,481,964,542,225.02/1,386,428.15
  6. Step 6: Final answer
    x = 1,068,908.29

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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.